Designed for rock, ice and alpine climbing, the Proton LT Hoody performs as a softshell/lightweight insulated mid layer. The air permeable insulation makes the Proton LT Hoody ideal for high intensity climbs, regulating your body temperature, this also prevents vapour accumulation. Using Fortius Air 20 fabric that is both breathable yet keeps you warm and dry thanks to the Coreloft Compact 80 insulation. When the wind picks up, the high collar protects your neck whilst the No Slip Zi prevents the zip from slipping down. Pair with a waterproof hardshell for ultimate winter protection.