Our Featherweight Air Harness is our newest style in our wildly popular Featherweight Walking Collection. • Cool and breezy - spacer mesh body  • Claspless design - put it on like a stretch fleece, the cilching adjustment is fast and easy on the hands • Prevents dogs backing out of harness - the remaining slack acts like a martingale loop, tightening when the dog pulls (forward or backwards) and staying comfortably loose the rest of the time. • Reflective trim Recommended for: All dogs, especially dogs that try to back out of their harnesses. The martingale loop helps control pulling too. Coordinates with: Matches our Featherweight Leash and Featherweight Hound Collar.