Under Armour UA Rival Knit Tracksuit. We took the classic tracksuit and made it better, with super-soft materials that also wick sweat to keep you dry and light. Features a smooth tricot knit exterior with a brushed interior for soft comfort & warmth. The material wicks sweat & dries really fast. Includes open hand pockets. JACKET: Ribbed cuffs & hem. PANTS: Ribbed waistband with external drawcord.