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OS2O

TRAIL RUNNING

Technical clothing for running and competing in the mountains

TRAIL RUNNING

O2 Waterproof Trail Jacket 30k Woman

The O2 Waterproof Trail Jacket 30k Woman is an ultralight, waterproof, extremely breathable and 100% windproof jacket. Designed for trail running competition or training, it only weights 160 g. Made with 2.5 layer O2 membrane which provides impermeability (20,000mm water column) and breathability 30,000g/(m2·24h). 100% thermo-taped seams and waterproof YKK™ AquaGuard® zippers, it is also highly compressible and foldable in its own pocket.

FAST&LIGHT - 160g (XS)

Price €149.90

O2 Waterproof Trail Jacket 30k

The O2 Waterproof Trail Jacket 30k is an ultralight, waterproof, extremely breathable and 100% windproof jacket. Designed for trail running competition or training, it only weights 173 g. Made with 2.5 layer O2 membrane which provides impermeability (20,000mm water column) and breathability 30,000g/(m2·24h). 100% thermo-taped seams and waterproof YKK™ AquaGuard® zippers, it is also highly compressible and foldable in its own pocket.

FAST&LIGHT - 173g (S)

Price €149.90

O2 Waterproof Trail Jacket 30k

The O2 Waterproof Trail Jacket 30k is an ultralight, waterproof, extremely breathable and 100% windproof jacket. Designed for trail running competition or training, it only weights 173 g. Made with 2.5 layer O2 membrane which provides impermeability (20,000mm water column) and breathability 30,000g/(m2·24h). 100% thermo-taped seams and waterproof YKK™ AquaGuard® zippers, it is also highly compressible and foldable in its own pocket.

FAST&LIGHT - 173g (S)

Price €149.90

O2 Waterproof Trail Jacket 30k

The O2 Waterproof Trail Jacket 30k is an ultralight, waterproof, extremely breathable and 100% windproof jacket. Designed for trail running competition or training, it only weights 173 g. Made with 2.5 layer O2 membrane which provides impermeability (20,000mm water column) and breathability 30,000g/(m2·24h). 100% thermo-taped seams and waterproof YKK™ AquaGuard® zippers, it is also highly compressible and foldable in its own pocket.

FAST&LIGHT - 173g (S)

Price €149.90

EVO StretchShell Jacket

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)


Premio Mejor Chaqueta de membrana Desnivel 2017

Price €129.90

Evolution StretchShell Jacket Woman

The Evolution Stretchshell Jacket is a light, elastic garment that offers protection in a wide range of climate conditions. Made of StretchShell fabric, it is waterproof (15,000 mm), breathable (10,000 g/m2 24h), windproof and elastic. The inner microfleece provides also confort and a light thermal protection. A highly versatile garment, the evolution of softshell.

FAST&LIGHT - 212g (XS)

Price €109.90

X Ski Alpine Jacket

Hybrid jacket designed for skimo and FAST&LIGHT alpine activities. Insulated front and back panels with bio-polymer Sorona®DuPont® fiber while arms and shoulders are made of the highly elastic X-Stretch fabric for an enhanced freedom of movement: a combination that allows a great balance between breathability and isolation.

FAST&LIGHT - 340 g (M)


Regular price €109.90 Price €82.43
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Speedlight Pants

The Speedlight Pants are your perfect ally for FAST&LIGHT activities.  Thanks to their Action fit pattern and custom-width waist adjustment the SPEEDLIGHT PANTS provide a great adaptability to different conditions and freedom of movements. Made of an extremely light and four way stretch fabric with P4DRYTM technology, they offer quick drying, outstanding moisture management and odor control.  Ideal pants for mountaineers looking for multi-activity ultralight long technical pants. 

FAST&LIGHT - 231g (S)

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Price €79.90

Insulation Shorts Woman

Insulation overshort for mountain skiing and mountaineering that offer thermal protection for low temperatures. Made of resistant nylon and 100% windproof with Sorona®DuPont® 80g fiber filling. Full side zippers for quick use, even with boots on. YKK® Vislon™ zippers. Exterior water repellent treatment DWR. The ideal companion for FAST&LIGHT activities in low temperatures.

FAST&LIGHT - 150g (XS)

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Price €79.90

Insulation Shorts

Insulation overshort for mountain skiing and mountaineering that offer thermal protection for low temperatures. Made of resistant nylon and 100% windproof with Sorona®DuPont® 80g fiber filling. Full side zippers for quick use, even with boots on. YKK® Vislon™ zippers. Exterior water repellent treatment DWR. The ideal companion for FAST&LIGHT activities in low temperatures.

FAST&LIGHT - 150g (XS)

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Price €79.90

Hoka Ultra Trail

The Hoka Ultra Trail Jacket is a lightweight and versatile garment designed for trail running. Made of X-Stretch fabric with an Action FIT pattern that allows you to move freely maintaining a perfect balance between thermal protection and breathability.

FAST&LIGHT - 367 g (S)

Producto Especial Material Desnivel

Price €69.90

Hoka Ultra Trail

The Hoka Ultra Trail Jacket is a lightweight and versatile garment designed for trail running. Made of X-Stretch fabric with an Action FIT pattern that allows you to move freely maintaining a perfect balance between thermal protection and breathability.

FAST&LIGHT - 367 g (S)

Producto Especial Material Desnivel

Price €69.90

Hoka Ultra Trail Woman

The Hoka Ultra Trail jacket designed for women is a lightweight and versatile garment. Jacket that fits the body thanks to X-Stretch fabric, allow yourself to make any movement. Medium thermal insulation and breathability. Perfect jacket for the practice of trail running in low temperatures.

FAST&LIGHT - 360g (M)

Producto Especial Material Desnivel

Price €69.90

Ace Jacket Man

The Ace Jacket is a soft, light and elastic jacket made of X-STRETCH fabric - 210g. An extremely versatile garment, perfect as a light second layer in winter adventures or as an outer layer during summer activities. The X-Strech fabric double function guarantees a comfortable temperature and breathability in a perfect fit.

FAST&LIGHT - 305 gr (S)


Price €64.90

Ace Jacket Man

The Ace Jacket is a soft, light and elastic jacket made of X-STRETCH fabric - 210g. An extremely versatile garment, perfect as a light second layer in winter adventures or as an outer layer during summer activities. The X-Strech fabric double function guarantees a comfortable temperature and breathability in a perfect fit.

FAST&LIGHT - 305 gr (S)


Price €64.90

Ace Jacket Woman

Ace Jacket is a soft, light and elastic jacket designed with X-STRETCH fabric. An extremely versatile clothing, it is perfect as a light second layer during winter or as an outer layer during summer activities. The X-Strech fabric double function guarantees comfort temperature and breathability in a perfect fit.

FAST&LIGHT - 266g. (M)

Price €59.90

Ace Jacket Woman

Ace Jacket is a soft, light and elastic jacket designed with X-STRETCH fabric. An extremely versatile clothing, it is perfect as a light second layer during winter or as an outer layer during summer activities. The X-Strech fabric double function guarantees comfort temperature and breathability in a perfect fit.

FAST&LIGHT - 266g. (M)

Price €59.90

Insulation Vest

Extremely light insulated vest, designed with a wind-stopper ripstop front membrane, filled with a light (60g/m²) synthetic insulation that provides an extra protection from cold, and a back mesh, that enhances breathability. A perfect complement for medium/high intensity mountain activities in medium/low temperatures.

FAST&LIGHT - 150g (M)

Price €54.90

Ultra 2-in-1 Shorts

The Ultra 2 in 1 Shorts are the ideal combination of trail running shorts and tights. The inner elastic fabric offers great fastening and perfect fit while the outer shorts expell humidity being light and breathable. Ideal for either training or competition.

FAST&LIGHT – 180g
 (S)

Price €44.90

Ultra 2-in-1 Shorts

The Ultra 2 in 1 Shorts are the ideal combination of trail running shorts and tights. The inner elastic fabric offers great fastening and perfect fit while the outer shorts expell humidity being light and breathable. Ideal for either training or competition.

FAST&LIGHT – 180g
 (S)

Price €44.90

FAST&LIGHT Shorts

Ultra light pants for trail running, designed for training and competition. Thanks to its minimalistic design, these shorts are made of a lightweight, comfortable soft fabric which feels the closest to not wearing anything at all.

FAST&LIGHT – 83g (S)

Price €39.90

FAST&LIGHT Shorts

Ultra light pants for trail running, designed for training and competition. Thanks to its minimalistic design, these shorts are made of a lightweight, comfortable soft fabric which feels the closest to not wearing anything at all.

FAST&LIGHT – 83g (S)

Price €39.90

FAST&LIGHT Shorts

Ultra light pants for trail running, designed for training and competition. Thanks to its minimalistic design, these shorts are made of a lightweight, comfortable soft fabric which feels the closest to not wearing anything at all.

FAST&LIGHT – 83g (S)

Price €39.90

Seamless Compression Tech Shirt

Short sleeve compression t-shirt for men and women. Tight cut that adapts to the body like a second skin. It offers the maximum thermal insulation, with an efficient transpitation to keep the body dry all the time. Thermo-regulating effect that gives the garment the condition of cold or heat depending on the conditions and intensity of the activity.

FAST&LIGHT - 123g (S)
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Price €32.90

Seamless Compression Tech Shirt Woman

Short sleeve compression t-shirt for men and women. Tight cut that adapts to the body like a second skin for woman. It offers the maximum thermal insulation, with an efficient transpitation to keep the body dry all the time. Thermo-regulating effect that gives the garment the condition of cold or heat depending on the conditions and intensity of the exercise.

FAST&LIGHT - 112g (XS)



Price €32.90

Find your Everest Tank

The Ultralight T-shirt is designed to keep you cool and dry even during high intensity activities. Find Your Everest design. Made with a breathable elastic microfiber fabric, the Air Lite T-Shirt provides a perfect fit and dries extremely fast.

FAST&LIGHT - 65g (S)


OS2O made in Spain

Price €29.90

Find your Everest Tank

The Ultralight T-shirt is designed to keep you cool and dry even during high intensity activities. Find Your Everest design. Made with a breathable elastic microfiber fabric, the Air Lite T-Shirt provides a perfect fit and dries extremely fast.

FAST&LIGHT - 65g (S)


OS2O made in Spain

Price €29.90

Saiko Vest

Ultra-light vest featuring a front windstopper membrane with risptop and back mesh for enhanced breathability. Extremely foldable, it is a perfect accesory for weather changing conditions or windy days.

FAST&LIGHT - 60 gr (M)

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Price €29.90

Saiko Vest

Ultra-light vest featuring a front windstopper membrane with risptop and back mesh for enhanced breathability. Extremely foldable, it is a perfect accesory for weather changing conditions or windy days.

FAST&LIGHT - 60 gr (M)

YKK 140.jpg

Price €29.90

Saiko Vest

Ultra-light vest featuring a front windstopper membrane with risptop and back mesh for enhanced breathability. Extremely foldable, it is a perfect accesory for weather changing conditions or windy days.

FAST&LIGHT - 60 gr (M)

YKK 140.jpg

Price €29.90

Saiko Vest

Ultra-light vest featuring a front windstopper membrane with risptop and back mesh for enhanced breathability. Extremely foldable, it is a perfect accesory for weather changing conditions or windy days.

FAST&LIGHT - 60 gr (M)

YKK 140.jpg

Price €29.90

Ultra Lite Tank

The Ultralight T-shirt is designed to keep you cool and dry even during high intensity activities. Made with a breathable elastic microfiber fabric, the Air Lite T-Shirt provides a perfect fit, a nice soft touch and fast drying properties.

FAST&LIGHT - 65 g (M)
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Price €27.90

Compression Toesocks

Seamless medium compression toesocks designed to reduce muscle fatigue. The progressive compression from ankle to knee helps blood circulation and recovery. Its high nylon percentage assures high resistance and dryness. Recommended for medium or high intensity activities, or for recovery after the activity.

Price €24.90

SpeedLite Gloves

The Speedlite Gloves are a lightweight and versatile trail running gloves. Made with a double layer fabric, the outside elastane offers a great fit while the interior microfleece guarantees a soft touch and breathability. The result of this combination is a warm and comfortable glove. They also feature a silicone design for an improved grip. Touch screen compatible.

Price €19.90

Neck Warmer

Thermal neck warmer designed for outdoor activities in low temperatures. The fabric honeycomb structure with microperforations provides an excellent thermal protection, a great fitting and breathability. The perfect accesory for winter trail running, alpinism and skimo.

FAST&LIGHT - 80 g

Price €14.90

Neck Warmer

Thermal neck warmer designed for outdoor activities in low temperatures. The fabric honeycomb structure with microperforations provides an excellent thermal protection, a great fitting and breathability. The perfect accesory for winter trail running, alpinism and skimo.

FAST&LIGHT - 80 g

Price €14.90

Toesocks PP TRAIL (Midweight)

Seamless toe sock and medium shaft designed for Running and Trail Running. Its composition that combines 4 different fibers (Polypropylene, Coolmax, Polyamide and Spandex) ensures very good breathability and heat evacuation in a high temperature range. An ideal sock for long distance runs.

Regular price €13.90 Price €11.90
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Toesocks TRAIL (Lightweight)

Toe socks seamless for the practice of Trail Running. The TRAIL Toesocks are designed to avoid blisters thanks to the separation of your fingers while they provide great stability thanks to the elastic band on the arch of the foot. Medium upper that prevents gravel from entering the interior and mesh on the instep to enhance perspiration . A sock that ensures performance and durability for your trail rides.


Price €11.90

Toesocks TRAIL (Lightweight)

Toe socks seamless for the practice of Trail Running. The TRAIL Toesocks are designed to avoid blisters thanks to the separation of your fingers while they provide great stability thanks to the elastic band on the arch of the foot. Medium upper that prevents gravel from entering the interior and mesh on the instep to enhance perspiration . A sock that ensures performance and durability for your trail rides.


Price €11.90

Toesocks TRAIL (Lightweight)

Toe socks seamless for the practice of Trail Running. The TRAIL Toesocks are designed to avoid blisters thanks to the separation of your fingers while they provide great stability thanks to the elastic band on the arch of the foot. Medium upper that prevents gravel from entering the interior and mesh on the instep to enhance perspiration . A sock that ensures performance and durability for your trail rides.


Price €11.90

Toesocks TRAIL (Lightweight)

Toe socks seamless for the practice of Trail Running. The TRAIL Toesocks are designed to avoid blisters thanks to the separation of your fingers while they provide great stability thanks to the elastic band on the arch of the foot. Medium upper that prevents gravel from entering the interior and mesh on the instep to enhance perspiration . A sock that ensures performance and durability for your trail rides.


Price €11.90

Toesocks RUN (Lightweight)

Running and Trail Running Technical Toesocks. The RUN! Toesocks provide freedom of movement while prevents blisters as it eliminates any friction between the toes. Its high component of Nylon® and Coolmax® guarantees good moisture management, protection and outstanding durability in any surface and shoe.

Producto destacado Especial Material Desnivel 2017

Price €9.90

Toesocks RUN (Lightweight)

Running and Trail Running Technical Toesocks. The RUN! Toesocks provide freedom of movement while prevents blisters as it eliminates any friction between the toes. Its high component of Nylon® and Coolmax® guarantees good moisture management, protection and outstanding durability in any surface and shoe.

Producto destacado Especial Material Desnivel 2017

Price €9.90

Toesocks RUN (Lightweight)

Running and Trail Running Technical Toesocks. The RUN! Toesocks provide freedom of movement while prevents blisters as it eliminates any friction between the toes. Its high component of Nylon® and Coolmax® guarantees good moisture management, protection and outstanding durability in any surface and shoe.

Producto destacado Especial Material Desnivel 2017

Price €9.90

Toesocks RUN (Lightweight)

Running and Trail Running Technical Toesocks. The RUN! Toesocks provide freedom of movement while prevents blisters as it eliminates any friction between the toes. Its high component of Nylon® and Coolmax® guarantees good moisture management, protection and outstanding durability in any surface and shoe.

Producto destacado Especial Material Desnivel 2017

Price €9.90

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