The Storm is a great all-around fin ideal for travel. Produced using Monprene®, a single material construction that gives both durability and strength while maintaining exceptionally light weight - exactly what the traveling diver requires. The innovative foot pocket design has the advantage of a full foot fin for comfort with the versatility of an open-heel fin for adjustments.  Barefoot open heel fin, made in a single TPV compound Monprene® Ergonomic foot pocket ensures comfort, freedom and prevents fatigue Silicone bungee strap equipped with heel pad for easy on-and-off Strong compact blade aids in efficient power transfer Excellent grip on the underside to reduce slippage on deck Lightweight and designed for easy transport and storage Please note: On the white and black features, the color spot is a different color in different sizes. XXS: Purple XS/S: Yellow M: Red L/XL: Blue XXL: Gray