The Slyde Bicep Leash is an absolute must for any Slyde Handboarder. The Bicep leash is hands down the best way to increase your playtime. The leash completely cuts out swims to shore every time your board pops off your hand. The bicep leash is the Slyde preferred attachment as it allows you to quickly and easily cross over to either hand, go right, or left without getting caught up in your leash.