Ultraderp is the lightest leash on the market, weighing in at just 45 grams—about the same size and weight as an Airpods Pro case. It doesn't matter if you run with your dog on leash or keep one around just for trailheads and parking lots. Ultraderp is so light you'll forget it’s there. NOW TAKING PRE-ORDERS. SHIPPING IN OCTOBER 2025. FREE DOMESTIC ECONOMY SHIPPING! Thank you for your support