The Belly Cooling Pack was designed with an easy on/off for a quick cool down when your dog needs to lower its temperature a bit. The cooling pocket is made with 1000 denier Cordura nylon for long-lasting durability and comes with a TechKewl Cool Pax, similar to those found in our TechKewl Vests and Cooling Pad. The Phase Change Material used in the Cool Pax inserts is non-toxic, non-flammable, durable, reusable, lighter than water and releases long-lasting cooling relief for your dog. Two 1" mil spec nylon webbing straps with Velcro sections run up the chest and loop over the harness chest strap for easy removal and adjustability. Two more straps on each side end with G-hooks for connection to 2 or 3 G-hook systems found on many of our Modular Harness System harnesses (sold separately). Additional or replacement Cool Pax are available. Made in Coyote Brown with other colors available upon special request.