We spent 120 days testing the construction and durability of our Intermediate Bicep
Leash in the toughest waves on the planet, and we’re confident that the 8 rounds of
sampling and refinement has created the toughest leash in the world. The Advanced
Bicep is made of Premium grade BASF cord which is double stitched to the double walled
neoprene cuff with 10mm webbing, making this leash one of the most durable leashes on the planet.