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Arcteryx Proton LT Hoody - Men's

Arcteryx Proton LT Hoody - Men's
  • Color: Phenom
  • Color: Black
  • Color: Black
  • Color: Black
  • Color: Black
  • Color: Cloud
  • Color: Black Sapphire
Please select options
This item is only available in our retail stores, however it can be purchased online for curbside pick-up. Orders with in-stock items are typically ready in 1 - 3 days. Orders that contain Special Order Item(s) may take 10 - 14 days or more to be ready.


The Proton LT Hoody 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 in the body maintains excellent stretch recovery. The No Slip Zip™ keeps the main zipper from self-opening and the helmet compatible insulated hood gives additional warmth. Put it on, leave it on and stay focused on the activity.

Technical Features

  • Air permeable
  • Abrasion resistant
  • Water resistant
  • Wind resistant


  • Fortius™ Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability
  • Air permeable Coreloft™ Compact 80 insulation regulates a comfortable micro climate
  • Coreloft™ Compact 60 insulated helmet compatible hood gives additional warmth

Cuff & Sleeves Configuration

  • Stretch-knit cuffs

Design & Fit

  • Trim fit for athletic performance

Fabric Treatment

  • DWR (Durable Water Repellent) finish repels moisture

Hem Configuration

  • Dual lower hem adjusters
  • Drop back hem

Hood Configuration

  • Helmet compatible
  • Insulated hood
  • Adjustable hood drawcords


  • Articulated elbows
  • Gusseted underarms for mobility and comfort

Pocket Configuration

  • Two insulated hand pockets with zippers
  • Chest pocket with zip

Zippers & Fly Configuration

  • No Slip Zip™ front zipper
  • Dual back flaps on main zipper prevent wind penetration
SizeS, M, L, XL
Weight: 375g / 13.2 oz
Fit: Fitted
Model Measurements:
Height: 6ft 1"/185.4cms, Chest Width: 38.5"/97.8cms, Waist: 31"/78.7cms, Inseam: 32.5"/82.6cms
Wearing Size: Medium
Activity: Rock Climbing / Ice Climbing / Alpine Climbing
Model: X000004842


  • Fortius™ Air 20 - 84% nylon, 16% elastane
  • Dope Permeair™ 20 - 100% nylon
  • Coreloft™ Compact 80 - 100% polyester
  • Coreloft™ Compact 60 - 100% polyester


  • Machine wash in cold water on gentle cycle.
  • Wash dark colours separately.
  • Do not bleach.
  • Tumble dry on low heat.
  • Do not iron.
  • Do not dry clean.
  • Do not use fabric softener.
  • Double rinse.


Arc'teryx - The Proton LT Hoody

Part Numbers

Option UPC Store SKU
Phenom / Small 686487863743 JAC516415752
Phenom / Medium 686487863736 JAC514883912
Phenom / Large 686487863729 JAC516257152
Phenom / X-Large 686487863750 JAC517949922
Black / Small 686487384576 JAC583847789
Black / Medium 686487384569 JAC583409299
Cloud / Small 686487940079 JAC508584422
Cloud / Medium 686487940062 JAC50471742
Cloud / Large 686487940055 JAC506215242
Cloud / X-Large 686487940086 JAC50821212
Black Sapphire / Small 686487863583 JAC566460032
Black Sapphire / Medium 686487863576 JAC567049392
Black Sapphire / X-Large 686487863590 JAC565604982