Ruffwear Swamp Cooler Zip Vest Salmon Pink Size:Medium Due to the versatility of Due to the versatility of the hammock insulation systems Pertex microlight rip stop down fabric Formfitting with a zippered closure to keep cooling effect close to the bodyOversized armholes allow full range of motionLightweight spandex back panel rated to UPF 50+Three layer construction cools the coreWicking outer layer reflects heat and facilitates evaporationAbsorbent middle layer stores water for evaporationMesh lining keeps dog dry and comfortableUpper: Nylon spandex blendChest Panel:Outer Layer: Polyester air meshMiddle Layer: Polyester non woven feltLining: Dry weave polyester meshZipper: YKK Vislon zipperSecure fastenersWash in cold waterGentle cycleMild detergentAir dry The light and sleek Swamp Cooler Zip uses shade providing spandex over the back and Ruffwear’s Swamp Cooler™ tech in the chest panel for an evaporative cooling effect that disperses heat from the dog’s core