Arc'teryx PRO Alpha Bib Pant Men's (Gen 2.0)

Part of the Arc'teryx PRO tactical apparel range, the Alpha Bib Pant is a durable GORE-TEX® hardshell designed for operators facing severe weather, deep snow and demanding alpine conditions. Constructed with windproof and waterproof BD450 GORE-TEX® fabric, it combines a protective half-bib design, athletic articulation and reinforced high-wear areas for dependable environmental protection. Its layering-compatible fit, equipment-accessible features and integrated knee protection options support mobility and functionality during demanding cold-weather operations.

Why You Should Get It

• Severe Weather Protection – Windproof and waterproof BD450 GORE-TEX® construction provides protection against wind, water and deep snow.

• Protective Half-Bib Design – Enhanced front coverage and a breathable stretch back panel support weather protection and comfort.

• Easy Over-Boot Access – Full-length weatherproof side zippers allow convenient donning, doffing and ventilation.

• Reinforced Terrain Protection – Durable instep reinforcement and internal knee pad sleeves support demanding operations involving skis, snowshoes and crampons.

• Snow-Ready Cuff System – Adjustable ankle drawcords and lace-grabbers provide gaiter functionality in deeper snow.

Key Features

• Protective Half-Bib Construction – Features a breathable stretch back panel and enhanced weather protection across the bib front.

• Full-Length Weatherproof Side Zippers – Allow easy entry and exit over boots while providing adjustable ventilation.

• Glove-Friendly Thigh Pockets – Designed for one-handed operation and positioned for convenient access while seated.

• Reinforced Instep Protection – Helps prevent abrasion from skis, snowshoes and crampons.

• Gaiter-Style Ankle Closures – Drawcord cuff closures and lace-grabbers provide gaiter functionality in deeper snow.

• Glove-Friendly Drawcords – One-handed adjustment with vertically routed cords minimizes interference with boots, snowshoes and skis.

• Accessible Fly Closure – Fly zipper with button snap remains accessible while wearing harnesses and load carriage equipment.

• Integrated Knee Pad Sleeves – Accommodate removable soft knee pads or compatible Arc'teryx PRO knee caps, sold separately.

• Layering-Compatible Fit – Allows additional layers in cold weather, with sizing up recommended for severe cold weather layering.

Materials & Construction

• GORE-TEX® 3L BD450 Ripstop with Microgrid backer and NIR Signature Reduction

• TWEAVE® Durastretch® 6.5 oz Plain Weave Stretch-Woven

• SCHOELLER® Keprotec® instep reinforcement

• Made with PFAS chemicals

Technical Specifications

• Weight / Volume: 620 g / 21.9 oz (size L)

• Country of Origin: Canada

• MPN: X000004727