C-Skins Swim Research Legend 5mm Round Toe Boots - Unisex\'s A Combination of flexibility with durability; great for boots that prone to high wear and tear. Good board feeling from the flexible soles. Features: Multi layer sole rubber reinforcement Free Flex neoprene Glued and blindstitched seams Arch and Toe Flex System Sizes UK 4-12 | Euro 37-47 | US 5-13 Size Chart: C-Skin Adult Footwear Size UK4 UK5 UK6 UK7 UK8 UK9 UK10 UK11 UK12 EURO 37 38 39 40 42 43 44 46 47 US 5 6 7 8 9 10 11 12 13