The Kor Alloy™ Jacket is built to keep you in the comfort zone with a smart blend of materials: a Pertex® Quantum Air shell for wind resistance and breathability, plus a strategically mapped mix of AirMesh™ lining and Primaloft® Gold Active insulation for targeted warmth. This layer off-loads excess body heat and moisture on the ascent and effectively insulates under your favorite shell on the descent — making it a go-to midlayer for high-output backcountry missions.
Uses: Snowsports, Backpacking, Alpine Climbing, Rock Climbing, Hiking, Camping
Product Pitch: Wind-resistant and breathable, this jacket offers targeted warmth and durable comfort for backcountry climbs.
Features: Lightweight and breathable stretch ripstop Pertex® Quantum Air fabric|Strategically mapped hybrid of AirMesh™ lining and Primaloft® Gold Active insulation for the perfect combination of warmth and breathability|Underarm is mapped with highly air-permeable fabric to optimize breathability in active pursuits|Two secure zippered hand pockets|Internal secure zippered chest pocket|Stretch-knit fabric panels at cuff for comfort and sealing in warmth|Reflective heat transfer MHW logo at chest|Dual lower hem adjusters to seal in warmth|Highly packable design stuffs into its own hand pocket with carabiner clip loop|Center front draft flap and chin guard at top of zipper
Fabric Body: Pertex® Quantum Air™ 20D Coated Ripstop (front body and sleeves). 100% Nylon | Pertex® Quantum Air™ 20D Stretch Ripstop (underarms, back panel, and chest pocket). 59% Recycled Nylon, 41% Nylon
Size & Fit Assets: Womens-Tops
Product Badge: New
Benefit: Breathable Lightweight Durable (Abrasion Resistance) Athlete Favorite
Activity: Alpine Climbing Backpacking Camping Hiking Rock Climbing Snowsports
Benefit: Breathable Lightweight Durable (Abrasion Resistance) Athlete Favorite
Technology: Pertex Quantum Air Primaloft Gold Active
Insulation Type: Synthetic
Insulation Weight: 4.2 oz / 120 g
Fit: Standard Fit
Center Back Length: 24.5 in / 62.2 cm
Approx. Weight*: 9.5 oz / 270 g
Insulation Type: Synthetic
Product Class: Insulated Synthetic Tops
Activity: Alpine Climbing Backpacking Camping Hiking Rock Climbing Snowsports
Fabric Body: Pertex® Quantum Air™ 20D Coated Ripstop (front body and sleeves). 100% Nylon | Pertex® Quantum Air™ 20D Stretch Ripstop (underarms, back panel, and chest pocket). 59% Recycled Nylon, 41% Nylon
Style Variants
Available Colors: Gamma Grey, Bright Lichen, Black
Size Reference for Mountain Hardwear Women's Kor Alloy™ Jacket
Available Sizes: XS, S, M, L, XL


























