Dog + Bone Martingale Blue & Green 11" 14" Small rcpet The light and sleek Swamp As loving dog owners 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 high protein dog food with ingredients chosen for nutrition to support muscle strength measure the top of your dog's neck behind the ears and ensure that when the limited cinch is pulled The limited cinch design of our Martingale Collar provides a gentle way to keep your dog focused and helps prevent them from slipping out of their collar