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The Arc'teryx Alpha Lightweight Parka battles winter's distractions with its technical insulation strategy that combines RDS-certified 850-fill goose down with synthetic reinforcement in areas vulnerable to moisture. Ultra-durable yet surprisingly packable, this belay-focused piece features GORE-TEX INFINIUM™ with proprietary Hadron® face fabric that delivers exceptional abrasion resistance without unnecessary weight.
Hadron® with 2L GORE-TEX INFINIUM™ – Durable Hadron® with 2L GORE-TEX INFINIUM™ reinforces hood, chest, shoulders, sleeves, and rear hem.
Proprietary Hadron® Liquid Crystal Polymer Grid Face Fabric – Incredibly light and exceptionally durable with abrasion resistance rivalling fabrics twice its weight.
GORE-TEX INFINIUM – Windproof with a durable face and knit backer for enhanced weather protection.
bluesign® Approved
FC0 (PFC-Free) DWR Treatment
850-Fill European Grey Goose Down – Delivers exceptional warmth for its weight and is RDS (responsible Down Standard) certified.
Responsible Down Standard (RDS) Certified – 100% of Arc'teryx down is certified to the RDS by IDFL (No.TE-99950273).
Coreloft™ Continuous 90 (90g/m²)
Down Composite Mapping – Strategically places Coreloft™ synthetic insulation in areas prone to moisture.
Coreloft™ Compact 40 Insulation – 100% Recycled Polyester
Regular Fit – Arc'teryx classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably over or under our layers.
Internal Chest Pocket
Two Hand Pockets with Zippers
Two Internal Dump Pockets
Helmet Compatible StormHood™ – Provides full coverage without impacting visibility.
Dual Lower Hem Adjusters
Arc'teryx Bird and Word Logo Placed on Chest
Insulated Hood
Adjustable Hood Drawcord with Single Pull Adjuster
Internal Elastic Cuffs
Embedded RECCO® Reflector – Can aid search and rescue in emergency situations.
Double Side Zips Open for Ventilation
Warmth | Description | Ideal Conditions |
Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |