MISSION College Licensed Enduracool Towel Cools instantly when wet to 30 degrees below average body temperature Wear around your shoulders, neck, head or other hot zones to help you feel cool and go harder Typically the towel cools for up to 2 hours when wet; dimensions 13" x 37" When dry, the soft microfiber absorbs sweat and wicks moisture away from the skin To activate cooling technology soak towel, wring out excess and snap three times; to reactivate simple re-wet and re-snap the towel