The Ocean Hunter Spirit Freediving Fins are European designed long bladed fins, made specifically for spearfishing and freediving and have the broadest size range available in the market. They incorporate comfortable thermo synthetic rubber foot pockets for ease of use and an angled Tri material blade for maximum thrust and acceleration. Different colours of the Ocean Hunter Spirit fins represent different blade stiffness to cater for a wide range of diver sizes and power requirements. Great value spearfishing and freediving fins Freediving long blade, perfect for learning Super comfortable rubber foot pocket Durable Thermoplastic Blade Blue Blade offers a Super soft flex, Black and Green offers a Standard flex Note on sizing: Most Spearfishing fins are sized with wetsuit socks in mind (3mm)