| H2Odyssea 3mm Ultrasock |  | | The Ultrasock is designed to be worn underneath snorkeling, free diving, surfing and some scuba diving fins. | |  | | H2Odyssea 5mm Ultrasock |  | | The Ultrasock is designed to be worn underneath snorkeling, free diving, surfing and some scuba diving fins. | |  | | H2Odyssea Low Top Fin Socks |  | | Our Low Top Fin Sock is designed to be worn underneath snorkeling, free diving, surfing and some scuba diving fins. Constructed of 2mm neoprene with smooth internal seams for comfort. | |