Under armour coldgear armour crew topthe under armour coldgear armour crew top wicks moisture away from the skin and circulates heat keeping you warm without weighing you down features material 87 polyester 13 elastanedual layer fabric with an ultra warm brushed interior a slick fast drying exterior4 way stretch fabrication allows greater mobility in any directionmoisture transport system wicks sweat dries fastanti odour technology prevents the growth of odour causing microbessmooth