Peak Pooch - Heavy Duty, Reflective, Lightweight, Padded, No-Pull, Pet Dog Harness, Rip Stop Nylon, Tough Stainless Steel Hardware, ideal for Walking, Running, Outdoor, for Small, Medium, Large Dogs The Peak Pooch Harness is Perfect for a Comfortable Everyday Walk Five adjustment points ensure a near perfect fit for any dog Quick release buckles make it easy to put on and take off Medium size: 25 - 36 inch chest Brand: Peak Pooch