UA Storm technology repels water without sacrificing breathability. Strategic synthetic insulation (180g body/140g sleeve) to give you extra warmth where you need it. Insulation is lightweight, water-resistant, breathable & can be compressed without losing warmth. ColdGear Infrared technology uses a soft, thermo-conductive inner coating to absorb & retain your own body heat. Lightweight woven fabric delivers superior comfort & durability. Mock neck construction for added coverage & warmth. Secure, zip hand pockets. Dropped, shaped hem with drawcord adjust for enhanced coverage.