When conditions get tough, you need maximum protection, and that's where the W-Series Waterproof Shell Pants help you perform at your best. These lightweight 3-layer waterproof/breathable technical pants are designed for FAST&LIGHT alpinism. Crafted with the eVent® DVStorm™ 3-layer membrane, they provide exceptional protection with 20,000 mm water column waterproofing and 30,000 g/m²/24h MVTR breathability, keeping you dry and comfortable during high-intensity activities.

It features a wide, waterproof YKK™ AquaGuard® side zipper with a double slider, allowing for quick access with boots and ventilation of the leg during intense activities.

Its fully taped seams and a highly durable Kevlar fabric on the hem are standout features. Its ultralight construction and excellent weather protection make the W-Series Waterproof Shell Pants ideal for FAST&LIGHT activities. Pair it with other items from the W-Series collection (perfect over the W-Series Meteor Insulated pants) and discover the lightest and most functional way to tackle the mountains. 

FAST&LIGHT - 317 g.  (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)

Technical pants for FAST&LIGHT winter activities, combining the best of our STORMFLEECE™ PRO All Weather Resistant fabric, windproof, water-repellent, highly breathable, and thermally insulating, with bio-synthetic Sorona® fill panels (100 gr/m2) in strategic front and back areas, ensuring thermal protection and optimal breathability at a minimal weight. A revolutionary concept for winter activities in cold conditions where every gram makes a difference. Pair it with the W-Series Waterproof Shell pants for winter mountaineering activities on rainy or snowy days.

FAST&LIGHT - 268 g.  (S)

Technical mountaineering and ski touring pants designed to deliver thermal protection and mobility in demanding winter conditions. Built with 3-layer StretchShell PRO fabric featuring a waterproof and breathable membrane (20,000 mm / 20,000 g/m²/24h), they provide an optimal balance between durability, comfort, and stretch performance.

The elastic waistband with Velcro adjusters ensures a perfect fit regardless of body shape, while Kevlar® reinforcements at the ankles offer exceptional protection against cuts and abrasion from crampons and skis, ensuring long-lasting durability in technical terrain.

YKK® zippers guarantee reliable performance even under intensive use, and the PFC-free DWR C0 finish maintains water repellency and breathability after multiple outings. The FITZROY Pants are the warmest in the range, designed to move with protection and unrestricted mobility in the most extreme mountain conditions.

FAST&LIGHT - 438g (S)

Technical mountaineering and ski touring pants designed to deliver thermal protection and mobility in demanding winter conditions. Built with 3-layer StretchShell PRO fabric featuring a waterproof and breathable membrane (20,000 mm / 20,000 g/m²/24h), they provide an optimal balance between durability, comfort, and stretch performance.

The elastic waistband with Velcro adjusters ensures a perfect fit regardless of body shape, while Kevlar® reinforcements at the ankles offer exceptional protection against cuts and abrasion from crampons and skis, ensuring long-lasting durability in technical terrain.

YKK® zippers guarantee reliable performance even under intensive use, and the PFC-free DWR C0 finish maintains water repellency and breathability after multiple outings. The FITZROY Pants are the warmest in the range, designed to move with protection and unrestricted mobility in the most extreme mountain conditions.

FAST&LIGHT - 438g (S)

The Zermatt Pants are technical pants designed for alpinism and outdoor activities in cold conditions. Their StretchShell® ALP fabric with a weight of 240 g/m², offers an excellent balance of durability, elasticity, and thermal comfort, allowing optimal performance on climbs, couloirs, and mixed terrain routes.

The DWR finish provides water and light snow repellency without compromising breathability or the fabric’s natural touch, ensuring additional protection against moisture. Kevlar® reinforcements at the hem protect against cuts, abrasion, and crampons, increasing durability on demanding terrain. With a pre-shaped pattern and Velcro waist adjustment, they ensure a precise fit and great freedom of movement even during long technical days.

A solid, flexible, and reliable garment created for those who seek confidence and consistent protection in low temperatures.

FAST&LIGHT - 498g (S)

The Zermatt Pants are technical pants designed for alpinism and outdoor activities in cold conditions. Their StretchShell® ALP fabric with a weight of 240 g/m², offers an excellent balance of durability, elasticity, and thermal comfort, allowing optimal performance on climbs, couloirs, and mixed terrain routes.

The DWR finish provides water and light snow repellency without compromising breathability or the fabric’s natural touch, ensuring additional protection against moisture. Kevlar® reinforcements at the hem protect against cuts, abrasion, and crampons, increasing durability on demanding terrain. With a pre-shaped pattern and Velcro waist adjustment, they ensure a precise fit and great freedom of movement even during long technical days.

A solid, flexible, and reliable garment created for those who seek confidence and consistent protection in low temperatures.

FAST&LIGHT - 498g (S)

Technical pants for winter activities FAST&LIGHT, made with the innovative fabric recycled (69%) It 's all weather resistant: windproof, water repellent, highly breathable and thermally insulated. They offer a perfect fit, elastic belt compatible with harness, inner pulley for excellent grip on the boot. They are reinforced in the ankles with Kevlar and fiberglass of excellent resistance to cuts and clamps of crampons. YKK® VislonTM zippers with guaranteed durability. External water repellent treatment DWR free of PFCs.

The It 's a meteor are versatile, lightweight and elastic designed for fast and unrestricted movement in a wide range of activities and climatologies.

FAST&LIGHT - 335 grams (S)

Technical pants for FAST&LIGHT activities in medium and low temperatures​, made with the innovative recycled (69%) STORMFLEECE PRO® All Weather Resistant fabric: windproof, water repellent, highly breathable and thermally insulating. Elastic waist for perfect fit, harness-compatible pocket, inner gaiter for excellent support with boots on. YKK® Vislon™zippers. DWR water repellent exterior treatment.

The Meteor Pants are stretchable and extremely light designed to move fast and without restrictions on a wide range of activities and conditions.

FAST&LIGHT - 261g (S)

Technical pants for FAST&LIGHT activities in medium and low temperatures​, made with the innovative recycled (69%) STORMFLEECE PRO® All Weather Resistant fabric: windproof, water repellent, highly breathable and thermally insulating. Elastic waist for perfect fit, harness-compatible pocket, inner gaiter for excellent support with boots on. YKK® Vislon™zippers. DWR water repellent exterior treatment.

The Meteor Pants are stretchable and extremely light designed to move fast and without restrictions on a wide range of activities and conditions.

FAST&LIGHT - 261g (S)

The Evolution StretchShell Pants are ultra-lightweight FAST&LIGHT pants designed for winter trail running, alpinism, and ski mountaineering. Weighing only 228 g (S), they offer an exceptional balance between lightness, protection, and mobility. Built with 3-layer StretchShell PRO fabric, they ensure a 15,000 mm waterproof rating, 30,000 g/m²/24h breathability, and full windproof performance.

Their minimalist design prioritizes function and lightness: fast waist adjustment, compatibility with mountaineering and ski boots, and technical details that optimize performance in snow and demanding terrain. A versatile and durable pant, created for athletes who want to go further, faster, and with the minimum weight in the mountains.

FAST&LIGHT - 228 g