Bicep or wrist leash?
Bicep leashes were introduced in the early 1990s as an option that helped keep the leash out of the rider's way when paddling and riding.
Wrist leashes are generally preferred for novice riders to use as they feel a bit more "familiar", and many entry-level boards come with wrist leashes. Wrist leashes are "one-size-fits-all".
BICEP SIZING - When choosing a bicep leash, start by bending the elbow at a 90-degree angle and measuring the circumference of your arm one inch above your elbow. Once you have your measurement, look in the below chart to choose the correct size bicep leash.
If you wear a wetsuit with long sleeves, add one inch to the measurement.