1、5mm premium neoprene material protect your feet from any sharp objects and keep warm in water and winter sports. 2、Rubber heel and toe cap for added strength and durability. 3、Non-slip bottom provides a good grip on any surface. Features: 5mm premium neoprene material protect your feet from any sharp objects and keep warm in water and winter sports. Rubber heel and toe cap for added strength and durability. Non-slip bottom provides a good  grip on any surface. The back of the heel has a special design that fits perfectly with open heel fins for Scuba Diving and prevent the slipping of the strap. Glued and reinforced stitching for a long service life. Zipper closure makes it easy to wear on / put off. Suitable for snorkeling, paddling, diving, sailing, spearfishing, surfing and more. Specifications: Material: Rubber + Neoprene Color: Black Size: S / M / L / XL / 2XL / 3XL / 4XL (optional) Package Size: 27 * 20 * 12 cm / 10.6 * 7.9 * 4.7 in Package Weight: 600 - 1150 g / 1.3 - 2.5 lb Size US EURO CN S 6 37-38 250 M 7 39 255 L 8 40-41 260 XL 9 42 265 2XL 10 43-44 270 3XL 11 45 275 4XL 12 46-47 280 Package List: 1 * Pair of Boots 1 * Pair of Boots