Hyperflex Pro Series Round Toe Boots The Hyperflex Pro Series Round Toe Boot is a high-performing and feature rich surf boot. Redesigned, the boot's fit-and-finish is better than ever, and Hyperflex gave it features that keep you warmer, more comfortable, and surfing as though you were barefoot. The boot uses Super-Stretch Foam a neoprene engineered for improved warmth and durability and has a diamond-skin sole which provides excellent traction and protection without losing feeling and control. Miniature diamond shaped channels provide consistent grip in all directions while allowing water to migrate away from in between the boot and the board. If you want the best, go with the Pro Boot. Additional Features High-Performing and Feature-Rich Surf Boot Fit-and-Finish is Better-than-Ever Warmer, More-Comfortable Surf Like Your Barefoot! Super-Stretch Neoprene: Engineered for Improved Warmth and Durability Diamond-Skin Sole: Excellent-Traction and Protection EXO-Shell+ Membrane: Vulcanized Heel Lock Membrane Structure GBS Seams (Glued and Blind Stitched): Single-Needle Dose Not Puncture Holes All-the-Way-Thru-Neoprene Taper-Lock Closure: High-Stretch, Tapered Panel Sewn on Boot Entry Boot Size ChartBoots are made in standard US sizes. Sizes shown are Men's. Women should order one size down from their normal size. Example: Women who wear a women's size 8 should order a men’s size 7.SIZES for Men & Women:5 Men / 6 Women6 Men / 7 Women7 Men / 8 Women8 Men / 9 Women9 Men / 10 Women10 Men / 11 Women11 Men / 12 Women12 Men / 13 Women13 Men / 14 Women14 Men / 15 Women15 Men / 16 Women16 Men / 17 Women