The USWE Harness NDM 2.1 Hajker is a lightweight and adjustable harness designed to provide a secure fit for your hydration pack. It features a patented No Dancing Monkey (NDM) technology that eliminates the bouncing and shifting of your pack while you ride. The adjustable straps and quick-release buckles make it easy to customize the fit for your body type. The harness also features a built-in safety whistle and reflective details for added visibility. The NDM 2.1 Hajker is perfect for mountain biking, trail running, and other outdoor activities. Get the most out of your hydration pack with the USWE Harness NDM 2.1 Hajker