Under Armour Men's Storm ColdGear Infrared Dobson Softshell 60% Cotton/40% Polyester Imported Ua storm gear uses a DWR finish to repel water without sacrificing breathability Primaloft Silver insulation is light, Breathable & can be compressed without losing warmth Strategic insulation (80g body/60g sleeve) to give you extra warmth where you need it Cold gear infrared Technology uses a soft, thermo-conductive inner Coating to absorb & retain your own body heat