Baleaf Men's 7" Quick Dry Workout Running Shorts Mesh Liner Zip Pockets 95% Polyester / 5% Spandex Lightweight ,Quick-Dry fabric helps keep you dry and comfy Built-in mesh briefs provide a supportive, breathable fit when exercising Deep side pockets and Zip pocket on the central back for convenience Side mesh panels ensure you get extra ventilation Reflective elements help keep you visible in low light