Rubber Fins: From the demands of the divers with military specifications, we are proud to recommend to you our solid black open heel rubber fin. This fin is made of antioxidant compound rubber that enhances the performance while keeping the blade consistently in appropriate hardness. The draining holes reduce resistance when you kick the water in making a forward propulsion. They are also helpful in gathering full kicking strength by moving the power to the front part of the blade. The enlarged channels and ridges provide balanced propulsion for diver movements. The one hand releasable swivel buckles and the intensified fin straps improve comfort and allow for easy adjustments. Men's Size (Shoes): S(5-7), M(8-10), L(11-13), XL(13-15). Women's Size (Shoes): S(6-8), M(9-11), L(12-14), XL(14-16). Boots: Thickness: 5mm. Zipper & zipper guard. Toe & heel caps. Black rubber sole. Excellent traction. Mask: Ideal for LARGE face- face seal size W4 5/8 * H4. EXTRA WIDE and LONG lens offers incredible field of view. OVERSIZED skirt for large face. Quick Release Swivel Buckle - allowing easy removal of strap and inclinations in various angles. Crystal, liquid silicone injected skirt and strap. Double edge comfort seal. Low volume. Tempered glass. Made in Thailand. Snorkel: A unique, 100% absolute dry design. Built-in whistle housing. Quick slip-in snorkel keeper. Pre-curved flexible silicone corrugated low section. Easy purge valve keeps stocking water out. Pre-curved silicone mouthpiece, prevents jaw fatigue. Silicone purge valve for easy draining.