Keep cool while doing activities such as gardening, construction, sports or just walking the dog. By simply soaking this bandanna in water for a few minutes the inner crystals inflate with a cooling gel that stays cool for days! Safe to wear around your head, neck and even on the dog and can be reuse several times by just re-soaking. Available in many assorted designs and colors, so we'll choose. Measures: 36" long x 2" wide.