The harness has A 3-strap program Each and every with a specific purpose. The Dynamic Bungee Strap provides overall flexibility for movement and breathing without the need of compromising the draw. The Static Buckle Strap will make for simple on/off although providing an anchor position to attract the pistol https://www.primmaryarmshop.com/product-tag/fn-510-accessories/?per_page=9&layout=list