Feature： PVC/polyurethane foam Imported Material: PVC leather+High resilience polyurethane foam pad + Environmental non-woven reflective stickers + PP bottom shell + Suspension steel arch. Using uniform structure design for ultra elasticity and make the air to circulate. It will reduce the friction between the hip and cushion. For male, no pressure on the testicle area. For female, no numb on the perineum area. Design of bending springback, comfortable and safe and no bumpy,this's great for the long time cycling. Using a unibody and ergonomic design,through the SGS shock test after 6000 km test, and 180 kg load-bearing pressure test. Reflective strip design for night riding,make your safer. Suitable for MTB,cross-country,BMX and fitness Dynamic bike,spinning,stationary bicycle.