The Under Armour Challenger Midlyr Ld54 offers exceptional comfort and performance. Made from 100% Polyester, this midlayer features a smooth tricot knit exterior with a brushed interior for soft comfort and warmth. The material wicks sweat and dries quickly, ensuring you stay dry and comfortable during any activity. It has a convenient ¼ zip front for easy layering and built-in thumbholes to keep sleeves in place. Style #: 6004072. Imported.