UA Storm technology repels water without sacrificing breathability. Smooth, spacer fleece constructed with internal air pockets to trap added warmth without sacrificing breathability. STORM woven overlay. Double-knit insulation panels are soft but pack incredible warmth. Material wicks sweat & dries really fast. UA logo on back neck. Channel fabric: 100% Polyester /Woven: 87% Polyester / 13% Elastane / Knit: 91% Polyester / 9% Elastane.