Smooth tricot knit exterior with a brushed interior for soft comfort & warmth. Material wicks sweat & dries really fast. 1⁄₄ zip front makes for easy layering. Built-in thumbholes help keep sleeves in place - Style #: 6004072. 100% Polyester. Imported. UA W Challenger Midlayer - Blue Atlantis / / High Vis Yellow - LG.