Features a compact strap fin that is perfect for skin diving. Compact fin for easy carrying. Small but firm propulsion. Reduces water resistance and allows you to move with little force. Foot pocket specifications for a unified feel that wraps your feet. Color W (white/small/medium/large) MB (Manta blue/medium/large) BK (black/medium/large) BL (blue/S/M/L) [Limited] Size: S sizes: 20 1.2 inches (3 cm) barefooWearing socks (7.1 - 8.3 inches (18 - 21 cm), wearing marine boots); M: 9.1 - 10.2 inches (23 - 26 cm), wearing barefoot, socks (8.3 - 9.4 inches (21 - 24 cm), wearing marine boots); Specifications: POM Strap: Silicone, Elastomer, PP specific gravity (to saltwater): Floating body size (24.5.4 - 16.4 - 16.4 inches (34 inches (34 inches (34 inches (34 cm). mm (20.2 oz (560M: 7.3 x 15.2 inches (185 x 385 mm), L: 7.9 x 15.9 inches (200 x 405 mm), 32.8 oz (886 g).