Backcountry travel is not linear - it involves uptracks, traverses, transitions, and descents. As temperatures and conditions shift, staying comfortable is crucial. That's where the Proton Hybrid comes in - with its Coreloft™ Compact insulation and Fortius Air 50 outer, it balances warmth, airflow, and vapor transfer. Additionally, the yoke and hood feature GORE-TEX INFINIUM™ for zonal windproof protection and defense against light snow and sleet. Versatile and comfortable, this is the ultimate backcountry essential.

Technical Features
Windproof
Breathable
Lightly insulated
Lightweight
Wind resistant
Versatile

Construction
Four-way stretch textile
GORE-TEX INFINIUM™ is windproof with a durable face and knit backer for enhanced weather protection
Coreloft™ synthetic insulation provides warmth with minimal weight and bulk
Airy four-way stretch polyester fabric is soft, comfortable, wicks moisture

Fabric Treatment
FC0-DWR (Durable Water Repellent) finish repels moisture

Hem Configuration
Adjustable hem drawcord

Hood Configuration
Single pull adjuster does not restrict vision
Low-profile GORE-TEX INFINIUM™ hood fits under a helmet

Logos & Label Configuration
Arc'teryx Bird logo

Patterning
Articulated patterning for unrestricted mobility

Pocket Configuration
Chest pocket with zip
Two hand pockets with zippers

Snowsport Features
RECCO® reflector aids search and rescue in emergency situations

Zippers & Fly Configuration
Full front zip

Materials
Contrast: 2L GORE-TEX INFINIUM™ with PFCec-free DWR
Lining: 20D plain weave - 100% Nylon - bluesign Approved Material
Origin of fabric: TAIWAN
Origin of dying: TAIWAN
May release plastic microfibres into the environment when washing