Cool dogs down instantly with these lightweight nylon and mesh Guardian Gear Cool Pup Bandanas. Cooling bandanas hold reusable and removable gel packs. Gel packs are safe and non-toxic; each stays cool for about an hour. Made of lightweight SPF fabric that helps release heat. Guardian Gear Cool Pup Bandanas are available in three sizes with Velcro tabs. Be sure to also check out our Guardian Gear Cool Pup Harnesses.