The Mares Snorkelling Pirate X-One Set offers three fantastic products conveniently bundled together at an extremely affordable price. Including the Pirate mask and snorkel, and the X-one fins, you're ready to hit the water. Silicone skirting on the mask ensures a good seal on the correct size face, and the semidry snorkel includes an exhaust valve to easily purge out water. The X-one fins include an array of great features such as a riddled foot pocket for drainage, a durable buckle-free regulation system and channel thrust technology to move more water efficiently. Pirate Mask: Silicone skirt EZ adjust buckles on the skirt Durable construction Wide viewing angle Pirate Snorkel: Semidry top with anti-splash Sliding keeper Silicone mouthpiece Exhaust valve X-One Fins: Buckle-free strap design Riddled foot pocket avoids parachute effect Travel-friendly short blade Channel Thrust technology Riddled Foot Pocket The perforations prevent stagnating water flow from slowing you down. Eliminating this “parachute effect” you’ll slide faster through the water. Furthermore, the openings eliminate any suction effect, making doffing easier. Buckle-Free Regulation System A sturdy, buckle-free design. Channel Thrust AQZ Soft longitudinal inserts allow a controlled deformation of the fin blade while kicking. This channel shape moves a greater amount of water resulting in more thrust for the same effort. Sizing XS - Eur 24 - 29 (US Jnr 7.5 to 11) S - Eur 30 -34 (US Jnr 12 to Adult 3)