The Brooks Cambium is gorgeous. Taking on a new racy shape, the Cambium C17 is actually modeled on the classic B17, ensuring the same comfort we’re used to from all the Brooks products. This new range is composed of a vulcanized natural rubber and organic cotton all meshed together by a layer of structural textile, amounting to great toughness and longevity for this new generation of Brooks saddles. Unlike other, leather based, Brooks saddles the C17 is maintenance free and completely waterproof allowing for immediate comfort and easy daily use. This product does not not need to be broken in becuase it is rubber it adjusts every time giving you instant comfort.