Hang Loose Hawaiian Cooling Top for DogsInnovative island fashions straight from Hawaii. Made to look good as well as keep your dog cool when it is hot outside. Each piece has crystals quilted throughout that, when soaked, turn into a gel. This holds the water at a cool temperature of 65ยบ for three to seven days! Velcro at neck and tummy for a perfect tropical tank-top fit. Hand wash, air dry. Do not freeze please, refrigerator is okay.