same instep cinch

The cushion lines the inside top of the foot pocket of your swimfins with plush 3mm neoprene

Everyone's mix of these elements is different

You can tie your leash to it or just use it to hang on

All you need are some sharp scissors and you'll be kicking in comfort for hours

Science Essentials Bicep Leash Color:Black/Pink same instep cinchOur Science ESSENTIALS Bicep Leash features a 4mm Neoprene Cuff for a secure fit and a durable 4ft, 8mm coil for long lasting use. Enhanced with Stainless Steel hardware to prevent corrosion and trusted BASF Urethane to ensure the durability and value behind this ESSENTIAL bodyboarding item! Small Medium Fits Bicep Circumference 8" 11" (21 28cm) Medium Large Fits Bicep Circumference Coming Soon! Large X Large Fits Bicep Circumference 11" 14" (28 36cm)