The Celestron Binocular Harness Strap alleviates neck strain caused by traditional neck straps when used for extended periods of time. By distributing the weight of the binoculars over your shoulders and upper back, the Harness Strap allows for hours of comfortable viewing, even on long hikes or nature walks. With fully adjustable, flexible straps, this harness fits a wide range of people, and can even be adjusted to fit over heavy winter jackets.