"Let them hear you coming—and going right past—with the Crinkle Ultimate Training Shorts. Built with a crisp, lightweight nylon shell and a more relaxed fit, they deliver full range of motion without stretch. A stretch boxer-brief liner and dual-layer drawstring waistband provide a secure fit, while updated construction helps prevent seam rips during activity. From easy miles to hard leg days, the energy is always turned up to the max. Machine Wash Cold, Tumble Dry Low | Chubbies The Fire & Ices 5.5"" Inseam Nylon Shorts with Poly Compression Liner | Size XS"