An alpine-oriented midlayer with an emphasis on breathability, the Arc'teryx Proton LT Hoodie excels at high-exertion activities like alpine climbing and ski touring. Abrasion-resistant and designed for full movement, the Proton LT Hoodie uses different weights of Coreloft™ insulation and air-permeable face and liner fabric for the ultimate in versatility and performance, even when damp.

Fortius™ Air 20 | 84% Nylon / 16% Elastane with Durable Water Repellent (DWR) Treatment – This face fabric has unrivaled hardwearing durability, over 60 times more durable in abrasion tests than the industry standard and is extremely air permeable.

60g/80g Coreloft™ Insulation | 100% Polyester – Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient staple fiber is very compressible and has excellent loft retention.

Dope Permeair™ 20 | 100% Nylon – A super breathable and durable liner material.

Trim Fit – Cut slim to the body through chest, waist, hip and thigh for a low profile fit.

Center Back – 74.8 cm / 29.4"

No Slip Zip™ – Textured zipper hem that prevents the zipper from sliding.

Two Insulated Hand Pockets with Zippers

Adjustable Helmet-compatible Hood

Dual Hem Adjustments

Chest Pocket with Zip