Dog cooling bandana aids heat exhaustion during those warm summer days. Stylishly constructed of cotton/polyester materials and filled with nontoxic polymer crystals that can hold up to 30 times their body weight in water. That means you'll get hours of doggie cooling relief for just pennies. Plus, the reusable, hand washable design is engineered to last. Durable self-fastening closures keep the bandana in place. Reflective tape helps to spot your dog at night.