Alpha Lightweight is Arc'teryx's lightest and most packable Alpha jacket to date, designed for those who move fast and light but still need full protection against the elements. This 3-layer GORE-TEX jacket delivers reliable waterproofing, windproofing and breathability, without compromising on weight or durability.

The exclusive Hadron® LCP outer fabric, featuring liquid crystal polymer in a grid structure, provides outstanding resistance to abrasion, outperforming materials that weigh twice as much. The jacket is built to withstand demanding conditions, while remaining extremely light and easy to pack into your rucksack when not in use.

The design has been carefully developed with freedom of movement in mind. Articulated patterning allows you to move freely on steep terrain or technical climbing sections, while the helmet-compatible StormHood™ hood protects you without restricting your peripheral vision. A waterproof WaterTight™ zip at the front allows quick ventilation and easy on and off, and the adjustable hem and cuffs help seal out cold draughts and rain.

The jacket features a practical chest pocket with a waterproof zip, and is equipped with an integrated RECCO® reflector, which can assist in search and rescue operations. It is treated with a durable DWR finish that keeps moisture and light precipitation at bay, and select colour options are dope-dyed, an environmentally friendly dyeing technique that reduces water and energy consumption during production.