Brooks Carbonite Tight Men's The Brooks Carbonite Tight gives runners coverage for cool-weather runs that also shines after dark. As part of the Run Visible collection, these running tights use reflective elements in high-motion areas to increase visibility in low-light situations. Highly reflective materials send light from a car's headlights directly back to the driver, helping you remain seen during late-night workouts. 3M™ Scotchlite™ Carbon Black Stretch reflectivity placed in key motion zones helps drivers recognize you as a runner in motion. A secure zipper pocket at the back keeps your cards, keys, or phone close while reducing bounce Updated fabric both insulates and breathes so you won't overheat. Internal infinity drawcord 26.5" Inseam Sizing Small: 30-32" waist Medium: 31.5-33.5" waist Large: 34.5-36.5" waist X-Large: 37.5-40" waist *Measurements refer to body size, not garment size.