Brooks Cambium saddles are made from vulcanized natural rubber and organic cotton. A thin layer of structural textile adds extra elasticity and the legendary Brooks durability. This combination makes the saddles uniquely flexible, maintenance-free, and waterproof. Thanks to their ability to follow the rider's movements, they provide immediate comfort and ease of use. The C17 features a sleek shape and modern lines, while closely resembling the geometry and dimensions of Brooks' flagship model, the B17. Thus, it offers the same timeless comfort, mile after mile.