Lightweight with Large Hydration Capacity. MOTO HYDRO 4L is the high-end hydration pack for Enduro / off-road motorcycle racing and adventure, with the perfect balanced fit for any individual rider. The pack is equipped with the bounce free No Dancing Monkey™ 1.2 harness system that makes the pack stay put on your back even in the most gnarly terrain. The unique elastic harness system allows you a tight fit, but gives that extra freedom to breathe and move. Zero bounce with NDM 1.2 harness - Equipped with the patented No Dancing Monkey™ 1.2 harness system with the NDM buckle for absolutely zero bounce. NDM Buckle - Technical buckle for a more secure closure and a better fit.