Body Glove Big Tuna 45 inch Large Bodyboard is made for Big & Tall riders. Using an EPS core, Inside the board sits a premium super lightweight ultra-strong expanded polystyrene (EPS) foam core. EPS cores are considered to be the most current, state-of-the-art fused cell material on the market. A Crescent Tail was designed for all wave conditions. The crescent tail has less contact with the face of the wave and increases the bodyboard's fluidity, especially in barreling, close-out, or shore break conditions. IXPE Skin cross-linked Polyethylene material that has an ultra-smooth finish that provides added comfort and durability for the rider. IXPE can maintain its density while still keeping its shock-absorbing feature. This material has a closed-cell structure which means that it is very good at keeping water out. Full channels are canals located near the tail on the (bottom). These channels help provide an extra grip on the face of the wave.