Cloak & Dawggie Step-N-Go Sport Sneaker Mesh Berry Medium 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. Constructed of Lightweight Breathable 3D Sneaker Mesh with Reflective Trim for Night Visibility Quick Clip D-Ring Features Signature Cloak & Dawggie Tag and Bone Charm Lightweight Mesh Keeps Your Dog Cool Size is Medium for Dogs Up to 20 lbs, and Adjusts from 20" - 24" In the Chest