Granvela MTB Mountain Bike Saddle Bicycle Cycling Silicone Skidproof Saddle Seat Silica Gel Cushion Seat The Bike Seat is made of high quality silica gel, weatherproof artificial leather cover and high-strength metal rack The thickness of Silica gel is 7mm. Memory Silica gel to deliver soft and smooth cushioning Great for Long distance bike rides,and it can be used for Mountain and Road Bike Comfortable,breathable and wear-resistant and durable with ergonomic and fashionable Design Easy to install and use. Weight:0.47kg