Arc'teryx Proton LT Men's Hoodie - Phenom EAV 12708 it is complemented by an

it is complemented by an intuitive WingLock Valve system to make inflation and deflation even quicker

not for the indecisive

taking up minimal space in your pack

matte fabric and has a smarter

The seat warmer provides some additional insulation and cushioning for when the sun dips

Arc'teryx Proton LT Men's Hoodie - Phenom EAV 12708 it is complemented by anA highly breathable insulated jacket for high output activities in cold conditions. The air permeable materials used mean swift transfer of body heat and moisture build up, regulating body temperature, to keep you from overheating. These properties also mean the Proton works outstandingly well as a mid layer beneath a shell. Not available for shipping outside of the UK and EU. (Excluding DE)