The Bretagne Sock is designed for diving in colder waters or for spear fishermen that have to travel over hard, sharp surfaces. The sock features a rubber-coated lower section along with a rubber sole. The Bretagne 3mm neoprene provides high thermal protection while the sock design makes them perfect for use with full foot fins. All seams are sewn for strength and durability and the socks are fully lined for easy donning and doffing.