Don’t loose your SUP Board! BIC SUP leashes are constructed from high quality component and meet our demand for rigorous standards of workmanship. With a detachable rail saver, swivel, molded stand-off on the ankle strap, and a 7mm diameter cord, the BIC SUP 11ft Std. leash “knee” is ideally suited to large SUP boards used in touring or flatwater. It is not suitable for wave riding.