September 15, 2021


Through a multi-year process of product concepting and validation, Arc’teryx has built our warmest down insulated belay jacket. Introducing the Alpha Parka: a windproof, water-resistant, highly breathable GORE-TEX INFINIUM™ shell for added protection from the elements.


The Alpha Parka is the warmest addition to the Alpha product family, known for lightweight, minimalist climbing and alpinism products that provide protection in alpine environments.

Sized to fit over multiple layers whether you’re belaying in frigid temperatures or arriving at base camp and need to retain warmth. This is the best protection you can get in the most extreme winter conditions. The Alpha Parka replaces the Firebee AR Parka.


  • Two GORE-TEX INFINIUM face fabrics combine for windproof, water resistant protection
  • Hadron™ paired with GORE-TEX INFINIUM™ reinforces hood, shoulders, lower sleeves & rear hem
  • 850 fill power grey goose down makes the Alpha Parka our warmest down insulated belay jacket

The Alpha Parka has N30r taped GORE-TEX INFINIUM in the body and durable Hadron™ GORE-TEX INFINIUM in higher contact areas like the hood, shoulders, lower sleeves and rear hem. Hadron™ is a proprietary fabric developed by Arc’teryx redefining the standard for superlight alpine durability. Made up of a gridded face fabric engineered with a liquid crystal polymer ripstop, Hadron™ delivers abrasion resistance rivaling fabrics twice its weight. This is the first insulated piece our design team built with Hadron™ as the face fabric.

Using 850 fill power grey goose down certified to the Responsible Down Standard that provides warmth without adding weight. The Alpha Parka features Arc’teryx Down Composite Mapping technology that combines the goose down insulation with panels of synthetic Coreloft™ Continuous insulation in the areas prone to moisture, like the collar, cuffs and under the arms. Two-way front zipper allows for custom ventilation while the dual drawcords at hem lock out the cold and customize your fit.

The StormHood™ fits easily over a helmet to block the cold when you’re belaying in freezing temperatures and features glove and mitten compatible adjustment drawcords so you can cinch easily without your fingers going numb. For quick access to all your essentials, the Alpha Parka has been fitted with two external hand pockets, as well as an internal chest and drop-in pocket for the items you need to keep protected but close at hand.

In the same way your alpine climb requires extreme care and attention, all details have been considered in the new Alpha Parka, providing a warm and packable option for all of your cold weather alpine expeditions.


Weight: 710g/25oz women’s small | 805g/28.4 oz men’s medium

Women’s fit: Regular, hip length, centre back length: 77cm/30.5in, drop hem

Men’s fit: Regular Fit, thigh length, drop hem, centre back length: 86 cm / 34 in

Materials: Hadron™ with 2L GORE-TEX INFINIUM, N30r 2L GORE-TEX INFINIUM, Coreloft™ Continuous 90 (90g/m²),  850 fill European grey goose down

Sustainability: Certified to the Responsible Down Standard, contains materials that meet the Bluesign® criteria, Dope Dyed fabric

Available from: 09/15/2021