C4 Carbon - 0.5 mm Open Heel Socks depth giving you less chances of

giving you less chances of entanglement at the lanyard stopper

A side stainless-steel D-ring can be used for surface-line or buoy connection

C4 Carbon - 1

Weight Capacity: Up to 26 lbs (12 kg)

which means you can tighten the sides to lock securely in any position

C4 Carbon - 0.5 mm Open Heel Socks depth giving you less chances ofC4 Carbon 0. 5 mm Open Heel Socks The C4 Carbon 0. 5 mm Open Heel Socks are ultra thin neoprene socks designed for freediving foot pockets. They add a light protective layer between your foot and the fin without significantly changing the fit. Use them when your fins already fit well, but you want less rubbing, fewer pressure points and more comfort during pool training, depth sessions or long open water dives. The 0. 5 mm thickness is the key point: