Nike Men's 2" Racer Short 100% Polyester Machine Washable Dri-FIT stretch woven fabric helps keep you dry and comfortable by wicking sweat to the fabric's surface, where it quickly evaporates. The built-in briefs feature lightweight recycled Dri-FIT fabric that helps reduce chafing and offers a supportive fit. Reflective details remain visible on low-light runs. Elastic waistband and draw cord.Small inside pocket.