Proton LT Jacket - Men's

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Durable & breathable synthetic-insulated lightweight jacket for active use

The Arc'teryx Proton LT Jacket is equipped with a breathable insulation package to manage the dynamic needs of mountain pursuits and perform as a self-regulating mid layer for a variety of high output activities. Breathable insulation means excess heat and moisture can pass through the combination of air permeable fabrics and insulation. In addition to being extremely air permeable, the Fortius™ Air 20 face fabric has unrivaled hardwearing durability, over 60 times more durable in abrasion tests than the industry standard. Coreloft™ Compact 80 synthetic insulation maintains excellent stretch recovery. The No Slip Zip™ keeps the main zipper from self-opening. Put it on, leave it on and stay focused on the activity.


Brand Name:
Insulation Type:
Coreloft™ Compact 80
340 g / 12 oz
Hood Type:
Helmet Compatible Hood
Made In:
Mfg Sku/Part Number:
Other Features:
Technical Features
-- Abrasion resistant
-- Water resistant
-- Air permeable
-- Wind resistant
-- Air permeable Coreloft™ Compact 80 insulation regulates a comfortable micro climate
-- Fortius™ Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability
Design & Fit
-- Trim fit for athletic performance
-- Articulated elbows
-- Gusseted underarms for mobility and comfort
Zippers & Fly Configuration
-- No Slip Zip™ front zipper
-- Dual back flaps on main zipper prevent wind penetration
Cuff & Sleeves Configuration
-- Stretch-knit cuffs
Hem Configuration
-- Drop back hem
-- Dual lower hem adjusters
Pocket Configuration
-- Chest pocket with zip
-- Two insulated hand pockets with zippers
Fabric Treatment
-- DWR (Durable Water Repellent) finish repels moisture
Fit: Trim fit, Hip Length
Center back length: 74.8 cm / 29.4 in
-- Fortius™ Air 20 - 84% nylon, 16% elastane
-- Dope Permeair™ 20 - 100% nylon
-- Coreloft™ Compact 80 - 100% polyester

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