Cloak & Dawggie Cool Mesh Harness Vest - Blue - Tiny 1 Quick, easy, secure. Just open the Velcro closure, your dog steps in, and close it to secure. Use the double leash ring closure for added security. Brightly colored mesh harnesses are perfect for warm weather Quick clip D-ring has bone charm. Perfect for warm months, this lightweight harness is constructed of ultra-breathable mesh. See sizing chart in product description for dog measurements.