Specifications: World popular models, has various benefits - featuring an extra slip resistant sole, heal strap to keep the foot in place and multiple ventilation ports that allow air, sand and water to easily slip through the vents. Features: 1) Size range: US: K9-11, K12-4, L5-10, M7-12 EU: 23-28#,29-34#,35-40#,40-45# 2) Fashionable and latest designs 3) PCCR (soft EVA foam) material for comfortable wearing and protecting your foot better 4) All colors available