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The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof for women. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 160g (XS)

The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof for women. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 160g (XS)

The Breathout PRO jacket is a lightweight technical 3-layer hardshell that offers a high waterproof protection and outstanding breathable capacity. Designed for alpinism and ski mountaineering in the most demanding conditions. Membrane eVent® DVStorm ™ 3-layer with Direct Venting™ technology, providing waterproof values of 20,000mm H2O column and a breathability function of MVTR 30,000g/(m² · 24h). 100% thermo-sealed seams, the outer layer is made of nylon with a double density yarn with a hybrid construction  (15 and 40 Denier) that provides both high resistance and a perfect adaptability to extenuant movements. YKK™ Vislon AquaGuard® waterproof zippers. The Breathout Pro Jacket is ideal for high intensity alpine activities under the most adverse weather conditions.

FAST&LIGHT - 348 g. (S)

Lightweight waterproof gloves for mountaineering and winter activities. Designed for those seeking a waterproof glove that combines high protection against water and abrasion with maximum grip and hand feel. It features a super adhesive leather palm with reinforced areas for use with ropes. The HDry® membrane (19k/30k) and its patented lamination technology bond all the layers of the glove, preventing water from entering while providing excellent breathability and finger dexterity. Combined with its ultra-resistant Nylon exterior fabric, this guarantees exceptional durability.

A high-performance glove for FAST&LIGHT alpine activities.

FAST&LIGHT - 103g (S)

The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®. Foldable in its own pocket.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 173g (S)

The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®. Foldable in its own pocket.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 173g (S)

The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®. Foldable in its own pocket.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 173g (S)

The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®. Foldable in its own pocket.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 173g (S)

The O2 Waterproof Trail jacket 30k is a waterproof jacket, extremely breathable, ultra lightweight and 100% windproof. It is a garment designed for trail running and fast activties with a weight of only 173 grams. Manufactured with the new O2 30K membrane of 2.5 layers which offers a guaranteed (test) waterproof protection of 20,000 mm and a transpiration capacity of MVTR: 30,000 g/ ((m2·24h). 100% heat sealed seams, waterproof zippers from YKKTM AquaGuard®. Foldable in its own pocket.

A carefully crafted garment designed to protect trail runners under the most adverse conditions without affecting their performance.

FAST&LIGHT - 173g (S)

The Cyclone Jacket is a 3-layer waterproof/breathable technical shell, designed for alpine climbing and ski mountaineering in the most demanding environments. Made with the eVent® DVStorm™ 3-layer membrane, it provides exceptional protection with a 20,000 mm water column rating and breathability of 30,000 g/m²/24h MVTR, keeping you dry and comfortable during high-intensity activities.

Key features include fully taped seams, an ultra-enveloping hood that fits perfectly over helmets, and two large chest pockets for quick access. It also has interior pockets and YKK™ Vislon AquaGuard® waterproof zippers for enhanced moisture protection. With its ultra-lightweight build and outstanding weather protection, the Cyclone Jacket is the ideal companion for intense alpine adventures in adverse conditions. Lightweight, reliable, and high-performance.

FAST&LIGHT - 393 g.  (S)

The Cyclone Jacket is a 3-layer waterproof/breathable technical shell, designed for alpine climbing and ski mountaineering in the most demanding environments. Made with the eVent® DVStorm™ 3-layer membrane, it provides exceptional protection with a 20,000 mm water column rating and breathability of 30,000 g/m²/24h MVTR, keeping you dry and comfortable during high-intensity activities.

Key features include fully taped seams, an ultra-enveloping hood that fits perfectly over helmets, and two large chest pockets for quick access. It also has interior pockets and YKK™ Vislon AquaGuard® waterproof zippers for enhanced moisture protection. With its ultra-lightweight build and outstanding weather protection, the Cyclone Jacket is the ideal companion for intense alpine adventures in adverse conditions. Lightweight, reliable, and high-performance.

FAST&LIGHT - 393 g.  (S)

The Cyclone Jacket is a 3-layer waterproof/breathable technical shell for women, designed for alpine climbing and ski mountaineering in the most demanding environments. Made with the eVent® DVStorm™ 3-layer membrane, it provides exceptional protection with a 20,000 mm water column rating and breathability of 30,000 g/m²/24h MVTR, keeping you dry and comfortable during high-intensity activities.

Key features include fully taped seams, an ultra-enveloping hood that fits perfectly over helmets, and two large chest pockets for quick access. It also has interior pockets and YKK™ Vislon AquaGuard® waterproof zippers for enhanced moisture protection. With its ultra-lightweight build and outstanding weather protection, the Cyclone Jacket is the ideal companion for intense alpine adventures in adverse conditions. Lightweight, reliable, and high-performance.

FAST&LIGHT - 334 g.  (XS)

The Skeleton gloves are high-performance waterproof gloves designed to provide maximum protection and comfort for high-altitude winter activities, ideal for extreme cold, snow, and wind conditions. Equipped with the advanced eVent® BIO membrane, they offer waterproof, breathable, and windproof protection to keep your hands dry and warm. Their 100g Sorona® insulation ensures optimal warmth, maintaining heat at all times.

The goat leather palm with reinforcements provides durability and a secure grip, even on wet or slippery surfaces. Additionally, the ultra-durable palm material offers superior adhesion, while the index and thumb are touchscreen-compatible, allowing you to use devices without removing the gloves. The exclusive FLEXOR® technology delivers exceptional finger mobility, combining protection and dexterity for any mountain activity.  

FAST&LIGHT - 169g (S)

The Vulcan mittens are designed for athletes facing extreme temperatures in high mountain conditions, providing maximum insulation and protection against the cold. They are ideal for altitudes between 6000 and 7000 meters or for those seeking exceptional warmth in blizzard conditions and during ski descents. Equipped with the advanced eVent® BIO membrane (19k/25k), these mittens are waterproof, breathable, and windproof, ensuring that your hands stay dry and warm.

The Sorona® insulation provides superior warmth with 400g in the back and 100g in the palm, blocking the cold from reaching every part of your hands. The reinforced leather palm ensures durability and a firm grip, while the extra warm lining in the back adds additional comfort in extreme temperatures. These mittens are the ideal choice for those who do not want to risk being without protection, keeping your fingers warm even in the most challenging conditions.  

FAST&LIGHT - 209g (S)

Ultralight waterproof pants, designed for ski touring or FAST&LIGHT activities in the rain/snow. Manufactured with the innovative O2 2.9 layer membrane, waterproof (20,000mm H2O column) breathable (20,000g/m²·24h) and totally windproof. Heat-sealed seams, full YKK™ side zippers to put them on quickly without removing skimo or mountain boots. Folds into its own pocket in a very reduced space. A versatile product for high-intensity activities and competitions under the rain/snow.

FAST&LIGHT - 185g (XS)

Ultralight waterproof pants, designed for ski touring or FAST&LIGHT activities in the rain/snow. Manufactured with the innovative O2 2.9 layer membrane, waterproof (20,000mm H2O column) breathable (20,000g/m²·24h) and totally windproof. Heat-sealed seams, full YKK™ side zippers to put them on quickly without removing skimo or mountain boots. Folds into its own pocket in a very reduced space. A versatile product for high-intensity activities and competitions under the rain/snow.

FAST&LIGHT - 185g (XS)

Waterproofing for washing machine. This product adds Water Repellency to our breathable waterproof clothing. If the outer fabric of our waterproof garments absorbs water, the garment can lose up to 70% breathability. It is quick and easy to apply in the washing machine and its highly Durable Water Repellency (DWR) coating develops during air drying.

Ultra light softshell jacket designed for FAST&LIGHT adventures. Manufactured in 3-layer StretchShell PRO, waterproof (15.000mm H2O), highly breathable (30.000g/(m²·24h)) and 100% wind-proof. Inner microfleece that provides a light thermal protection. Ultimate versatility, the ideal garment for high intensity mountain activities in medium and low temperatures.

FAST&LIGHT - 273g.  (S)

Ultra light softshell jacket designed for FAST&LIGHT adventures. Manufactured in 3-layer StretchShell PRO, waterproof (15.000mm H2O), highly breathable (30.000g/(m²·24h)) and 100% wind-proof. Inner microfleece that provides a light thermal protection. Ultimate versatility, the ideal garment for high intensity mountain activities in medium and low temperatures.

FAST&LIGHT - 273g.  (S)

Ultra light softshell jacket designed for FAST&LIGHT adventures. Manufactured in 3-layer StretchShell PRO, waterproof (15.000mm H2O), highly breathable (30.000g/(m²·24h)) and 100% wind-proof. Inner microfleece that provides a light thermal protection. Ultimate versatility, the ideal garment for high intensity mountain activities in medium and low temperatures.

FAST&LIGHT - 273g.  (S)

Technical alpine jacket for winter activities, made of PFC-free Stretch Shell PRO waterproof (20,000mm H2O column), breathable (20,000g/(m² · 24h)), elastic and with a warm, soft hand touch that offers a high ratio between thermal protection and weight. Easy-access pockets on chest and harness-compatible pockets on sides. The Eiger PRO allows complete freedom of movement making it ideal for demanding mountain crossings of several days.  

FAST&LIGHT - 575g (S)

Technical mountaineering and mountain skiing pants. Manufacture from fabric StretchShell PRO membrane 3 layers waterproof and breathable (20k/20k), Eiger pants are versatile, thermal and elastic, providing a perfect fit and total freedom of movement. Their waist is elastic compatible with harness, they have an inner lycra zone for excellent grip on the boot. They are reinforced in the ankles with Kevlar® and glass fiber of very high resistance to cuts and pinches of crampons and skis. YKK® VislonTM zippers with guaranteed durability. External water repellent treatment DWR free of PFCs.

Eiger Pants are functional, durable and elastic designed to move safely and unrestricted in a wide range of alpine activities and climates.

FAST&LIGHT - 452 grams (S)

Technical mountaineering and mountain skiing pants. Manufacture from fabric StretchShell PRO membrane 3 layers waterproof and breathable (20k/20k), Eiger pants are versatile, thermal and elastic, providing a perfect fit and total freedom of movement. Their waist is elastic compatible with harness, they have an inner lycra zone for excellent grip on the boot. They are reinforced in the ankles with Kevlar® and glass fiber of very high resistance to cuts and pinches of crampons and skis. YKK® VislonTM zippers with guaranteed durability. External water repellent treatment DWR free of PFCs.

Eiger Pants are functional, durable and elastic designed to move safely and unrestricted in a wide range of alpine activities and climates.

FAST&LIGHT - 452 grams (S)

Women's technical mountain and ski pants. What. Manufacture from fabric StretchShell PRO membrane 3 layers waterproof and breathable (20k/20k), Eiger pants are versatile, thermal and elastic, providing a perfect fit and total freedom of movement. Their waist is elastic compatible with harness, they have an inner lycra zone for excellent grip on the boot. They are reinforced in the ankles with Kevlar® and glass fiber of very high resistance to cuts and pinches of crampons and skis. YKK® VislonTM zippers with guaranteed durability. External water repellent treatment DWR free of PFCs.

Eiger Pants are functional, durable and elastic designed for to move protected and unrestricted in a wide range of alpine activities and climatologies.

FAST&LIGHT - 415 grams (XS)

Women's technical mountain and ski pants. What. Manufacture from fabric StretchShell PRO membrane 3 layers waterproof and breathable (20k/20k), Eiger pants are versatile, thermal and elastic, providing a perfect fit and total freedom of movement. Their waist is elastic compatible with harness, they have an inner lycra zone for excellent grip on the boot. They are reinforced in the ankles with Kevlar® and glass fiber of very high resistance to cuts and pinches of crampons and skis. YKK® VislonTM zippers with guaranteed durability. External water repellent treatment DWR free of PFCs.

Eiger Pants are functional, durable and elastic designed for to move protected and unrestricted in a wide range of alpine activities and climatologies.

FAST&LIGHT - 415 grams (XS)

Multifunctional technical jacket for activities FAST&LIGHT and mountain skiing in medium and low temperatures. Made with the innovator StormFleECETM PRO is all-weather resistant: waterproof, windproof, has good thermal protection, high breathability and is extremely light. In addition, it offers a very good fit to the body by being elastic in all 4 directions and provides good resistance to friction and hooks. Large chest pockets with inner flap for seals or other quick access items.

The Meteor Jacket is a versatile, lightweight and highly functional jacket, designed to move light and unrestricted in a very wide range of activities and climatologies.

FAST&LIGHT - 325 grams (S)

Tenacious Tape Gear Aid by McNett is an all-purpose, transparent weatherproof repair tape that fixes rips, holes, taping and gashes in almost all kinds of outdoor gear. It stays put no matter what climate conditions appear and leaves no sticky mess. It is easy to apply and care. Tenacious Tape is the best option to repair O2 Waterproof Membrane and eVent fabrics in OS2O’s products.

High performance detergent for the OS2O waterproof membrane collection. It cleans and revitalizes breathability and water repellent properties. This product prolongs life to more technical garments.

Light high capacity trail running belt ideal for short and medium distance races or as an accesory to a vest in long distance ones. Its seamless highly stretchable fabric provides a perfect fit while carrying a mobile device, gels, bars, gloves, poles (front or back), a 500 ml soft flask and a waterproof jacket in a no-rebound compact way.

FAST&LIGHT - 61g

Light high capacity trail running belt ideal for short and medium distance races or as an accesory to a vest in long distance ones. Its seamless highly stretchable fabric provides a perfect fit while carrying a mobile device, gels, bars, gloves, poles (front or back), a 500 ml soft flask and a waterproof jacket in a no-rebound compact way.

FAST&LIGHT - 61g

Extremely lightweight and versatile jacket thanks to its high-performance StretchShell Pro with high water resistance (15k), very high breathability (30k) and light thermal protection. A very complete garment for any FAST&LIGHT activity in medium and low temperatures, where protection from weather conditions together with a proper ventilation are guaranteed even during high intensity activities like mountaneering ski.

FAST&LIGHT - 247 grams . (XS)

Extremely lightweight and versatile jacket thanks to its high-performance StretchShell Pro with high water resistance (15k), very high breathability (30k) and light thermal protection. A very complete garment for any FAST&LIGHT activity in medium and low temperatures, where protection from weather conditions together with a proper ventilation are guaranteed even during high intensity activities like mountaneering ski.

FAST&LIGHT - 247 grams . (XS)

Ultra light, extremely packable and very breathable trail running cap. Short flexible brim that protects your face while allowing a wide visibility and makes it packable in a pocket of a running belt. Built with Cool2Dry® very light and quick dry provides a cool and ventilated feeling while protecting from sun, wind and rain.

An ideal accessory for any trail running activity under the sun, wind or rain.

FAST&LIGHT - 42g

Ultra light, extremely packable and very breathable trail running cap. Short flexible brim that protects your face while allowing a wide visibility and makes it packable in a pocket of a running belt. Built with Cool2Dry® very light and quick dry provides a cool and ventilated feeling while protecting from sun, wind and rain.

An ideal accessory for any trail running activity under the sun, wind or rain.

FAST&LIGHT - 42g

Ultra light, extremely packable and very breathable trail running cap. Short flexible brim that protects your face while allowing a wide visibility and makes it packable in a pocket of a running belt. Built with Cool2Dry® very light and quick dry provides a cool and ventilated feeling while protecting from sun, wind and rain.

An ideal accessory for any trail running activity under the sun, wind or rain.

FAST&LIGHT - 42g

Ultra light, extremely packable and very breathable trail running cap. Short flexible brim that protects your face while allowing a wide visibility and makes it packable in a pocket of a running belt. Built with Cool2Dry® very light and quick dry provides a cool and ventilated feeling while protecting from sun, wind and rain.

An ideal accessory for any trail running activity under the sun, wind or rain.

FAST&LIGHT - 42g

Ultra light, extremely packable and very breathable trail running cap. Short flexible brim that protects your face while allowing a wide visibility and makes it packable in a pocket of a running belt. Built with Cool2Dry® very light and quick dry provides a cool and ventilated feeling while protecting from sun, wind and rain.

An ideal accessory for any trail running activity under the sun, wind or rain.

FAST&LIGHT - 42g

Ultra light, extremely packable and very breathable trail running cap. Short flexible brim that protects your face while allowing a wide visibility and makes it packable in a pocket of a running belt. Built with Cool2Dry® very light and quick dry provides a cool and ventilated feeling while protecting from sun, wind and rain.

An ideal accessory for any trail running activity under the sun, wind or rain.

FAST&LIGHT - 42g

The KRYPTON INSULATION jacket is an ultra-light, high-performance insulated jacket. Designed for a FAST&LIGHT layer system, it combines the insulating protection and high breathability of Sorona Aura® DuPont® 40g fiber with the 100% windproof functionality of the exterior WindBreaker® fabric. Developed by using thermography and body mapping to combine plain sections with square baffles in key areas. Its hybrid construction results in a highly versatile and functional garment. The side pockets are positioned so as not to overlap with our FAST&LIGHT waterproof jackets.

The KRYPTON INSULATION jacket can be used as a second layer or third layer without the accumulation of hoods.

FAST&LIGHT - 227g  (S)

The KRYPTON INSULATION jacket is an ultra-light, high-performance insulated jacket. Designed for a FAST&LIGHT layer system, it combines the insulating protection and high breathability of Sorona Aura® DuPont® 40g fiber with the 100% windproof functionality of the exterior WindBreaker® fabric. Developed by using thermography and body mapping to combine plain sections with square baffles in key areas. Its hybrid construction results in a highly versatile and functional garment. The side pockets are positioned so as not to overlap with our FAST&LIGHT waterproof jackets.

The KRYPTON INSULATION jacket can be used as a second layer or third layer without the accumulation of hoods.

FAST&LIGHT - 227g  (S)

The KRYPTON INSULATION jacket is an ultra-light, high-performance insulated jacket. Designed for a FAST&LIGHT layer system, it combines the insulating protection and high breathability of Sorona Aura® DuPont® 40g fiber with the 100% windproof functionality of the exterior WindBreaker® fabric. Developed by using thermography and body mapping to combine plain sections with square baffles in key areas. Its hybrid construction results in a highly versatile and functional garment. The side pockets are positioned so as not to overlap with our FAST&LIGHT waterproof jackets.

The KRYPTON INSULATION jacket can be used as a second layer or third layer without the accumulation of hoods.

FAST&LIGHT - 192g  (XS)

Multifunctional technical jacket for activities FAST&LIGHT in medium and low temperatures. What. Made with the innovative STORMFLEECETM PRO, made from 69% recycled all weather resistant garment: waterproof, windproof, has good thermal protection, high breathability and is extremely light. In addition, it offers a very good fit to the body by being elastic in all 4 directions and provides good resistance to friction and hooks. YKK® VislonTM zippers with guaranteed durability.

The Meteor Jacket is a versatile, lightweight and highly functional jacket, designed to move light and unrestricted in a very wide range of activities and climatologies.

FAST&LIGHT - 378g (S)

Multifunctional technical jacket for activities FAST&LIGHT in medium and low temperatures. What. Made with the innovative STORMFLEECETM PRO, made from 69% recycled all weather resistant garment: waterproof, windproof, has good thermal protection, high breathability and is extremely light. In addition, it offers a very good fit to the body by being elastic in all 4 directions and provides good resistance to friction and hooks. YKK® VislonTM zippers with guaranteed durability.

The Meteor Jacket is a versatile, lightweight and highly functional jacket, designed to move light and unrestricted in a very wide range of activities and climatologies.

FAST&LIGHT - 378g (S)

Technical jacket women's for activities FAST&LIGHT in medium and low temperatures. Manufactured with the innovative STORMFLEECETM PRO, at 69% recycled origin, is an all-weather garment Resistant: waterproof, windproof, has good thermal protection, high breathability and is extremely light. In addition, it offers a very good fit to the body by being elastic in all 4 directions and a good resistance. YKK® VislonTM zippers with guaranteed durability.

The Meteor Jacket is a very versatile, lightweight and multifunctional jacket designed to move lightly and unrestricted in a very wide range of activities and climates.

FAST&LIGHT - 330 grams (XS)

Technical jacket women's for activities FAST&LIGHT in medium and low temperatures. Manufactured with the innovative STORMFLEECETM PRO, at 69% recycled origin, is an all-weather garment Resistant: waterproof, windproof, has good thermal protection, high breathability and is extremely light. In addition, it offers a very good fit to the body by being elastic in all 4 directions and a good resistance. YKK® VislonTM zippers with guaranteed durability.

The Meteor Jacket is a very versatile, lightweight and multifunctional jacket designed to move lightly and unrestricted in a very wide range of activities and climates.

FAST&LIGHT - 330 grams (XS)