The optech usa super classic strap uni loop black is designed to carry a camera or binoculars up to 15 lbs it is a tailored 20 wide neoprene strap that uses a comfort stretch binding with an internal control stretch system for added support there is a non skid surface that wont slip on shoulder this strap is made in the usa tailored 2 wide neoprene strap uses comfort stretch binding with an internal control stretch system for added support non skid surface wont slip on sh