Watery neoprene set - Calder Pro (2,5 - 4mm) - BlackComplete neoprene set in our pro series for open water swimmers. Calder pro neoprene gloves While using many other neoprene gloves on the market, many people experience getting water into the gloves themselves, and then that they become looser on the hand and slowly slide off the hands as soon as you start swimming. This has been Calder Pro's main task to avoid with these top quality neoprene gloves. This is achieved by Extending the length of the