We've taken some of Spot's original nautical designs and created a fantastic "step-in" harness. Your pup simply steps his two front legs into the harness and the quick release buckle snaps at the shoulders for easy on and off. Harnesses adjust precisely to fit the chest and belly measurements, as well as the length between them, which is particularly important for dogs with broader chests or larger bellies. Our harness construction has the same no-slip adjustment feature as our collars, so your pup will stay secure in his custom fit harness and won't wiggle out.