Description A lightweight yet effective design allows it to fit comfortably under a helmet. The smooth mesh top helps keep your head cool, even on hot summer days. This sweat skull cap is great for bicycling, lacrosse, football, hockey, motorcycling or on the job under a hardhat.4-way stretch micro-mesh top releases heat for year-round comfortPatented SweatBlock Seal channels sweat back and away from the eyes and face!Dryline fabric absorbs sweat, wicks moisture and dries quickly 63% Nylon, 23% Polyester, 14% LycraWill not lose shape, form or stretch outWorks great under helmets 0 Reviews 0 Reviews Add Review