This PRP Seats / Shreddy collaboration Alpha Composite Seat is the raddest racing seat on the market. The Alpha Composite is the ultimate composite seats, that is specifically Built for Off-Road. The seat is made with thick high-density foam all around for added comfort, and large harness slots that allow a fresh air hose to fit through. The injection molded, contoured bottom cushion provides great comfort during long endurance races. The recessed headrest and shoulder area creates more helmet room, and allows you to use a HANS device without the seat pushing your chest forward. Keeping your spine in-line at the correct angle while seated. The large harness slots on the shoulders allow you to fit the harness, and a fresh air hose through at the same time. Made from high quality marine grade vinyl. Fits Drivers with waist size up to 36" comfortably. Requires PRP composite seat mounts to install. Shreddy Alpha Composite Seat Teal and Grey - PRP Black Out, Shreddy Black/Pink, Black Stitch, 238, 203, 238, 203. Features: Injection molded, contoured bottom cushion Thicker, higher density foam all around Reclined headrest for more helmet room Recessed shoulder area for HANS compatibility Larger shoulder harness slots allow room for fresh air hose Angled lap belt slots provides the proper angle to install lap belts Higher lateral containment keeps your legs held in