The Edgar Sherman Design Sling, ESD Sling, was designed with purpose, research extreme testing, and experience. The ESD Sling is adaptable to the end-user. The ESD Sling is highly customizable to any rifle, sub-gun, shotgun, hunting rifle, bolt action, and PDW weapon system. There are two adjustment sections on the ESD sling. A rear adjustment section to fit the ESD sling to your body size and additional gear. And a quick-adjust section to loosen or tighten the sling while in use. The ESD Sling adjustment system is more adaptable to natural body movement and body mechanics. The 1-inch width of the ESD sling has less friction than wider slings and allows the ESD sling to move across your body without resistance.