The Baleari MD PHS 3mm are lightweight boots ideal for outdoor sports and travel. They feature a Hard Sole that protects the feet against sharp rocks. Made with Super Elastic Neoprene for best comfort within the sole, it is built to provide extra comfort, and is also ultra-durable. The back of the heel has a special design that fits perfectly with open heel fins for scuba diving. The small boss is used to prevent the slipping of the fins strap. A strong non-slip molding covers the entire sole. They are suitable for surfing, kayaking, scuba diving and different kind of water sports.