ROCKBROS Bike Saddle Silicone Hollow Breathable Best MTB Saddle Product Details: Brand: ROCKBROS Color: Black Size: L: 280mm x 160mm, M: 260mmx 140mm Material: Silicone, Lycra Fiber, Spong Product Features: Made of silicone, lycra fiber, and sponge to keep your hip soft when you cycling Get you a great feeling while riding Size fits for kinds of bikes Fashion Design for your choice Design Story: Jim, the designer, and cycling enthusiast carried out a 300 km ride in 2016. The following day, his buttocks ached because of bad traffic conditions. So he prepared to use a saddle cover to shock absorption. But these ordinary cushion covers will slide around during the ride, and can not be well fixed. And the damping effect because there is no silicone layer is not ideal. After the event, he designed this item, innovating a fixed system that greatly enhanced shock absorption and breathability. This product was born. After a month, he took a second ride. All the saddle problems have been solved.