On Lightweight Shorts Men's Running Apparel Shadow/Black : The On Lightweight Shorts for men are engineered with technical elements that also provide impeccable comfort and style. The blend of rip stop and stretch fabric with breathable, waterproofing features ensure protection during wet and windy weather without overheating or being restrictive. Pockets and zippers make for stylish and highly functional elements during your activities on or off the track or road. Reflective On logo featured at left hem. Features a back zippered pocket on waistband and an external drawcord for a personalized fit. Includes a soft, yet tighter fitting brief for added coverage. Flexible blend of lightweight, PU-ripstop, and 4-way stretch Nylon/Elastane fabric.