Welcome to our collection of medium dog harnesses! We have a wide variety of options to suit your furry friend's needs. Choose from vibrant options like the Pride Harness Rainbow or the Step In Harness Red. For a fun and playful look, check out the Donuts Dog H-Harness or the Barbie Everything Checkered Dog Harness. If safety is your priority, we recommend the Enhanced Strength Tru-Fit Dog Car Harness & Seatbelt Tether in Black. Our collection also includes the Nylon Adjustable Harness Blue, Harness Red Plaid, The Everything Mesh Dog Harness Reflective, and the Vest Harness Grey Gingham. Find the perfect harness for your medium-sized dog today!