The Bridge Sport is the perfect saddle choice for both on- and off-road expeditions. The broad, flat profile allows for added control, while the patented Body Geometry channel is optimized to assure proper blood flow to sensitive arteries.This Sport version is equipped with durable, steel rails, as well as an even softer density, Level 3 padding for extra comfort. Patented Body Geometry design is lab-tested for both men and women to assure blood flow to sensitive arteries. Light and super-durable steel rails. Level 3 padding: Low/Medium density foam provides the perfect blend of bike feel and cushioning. Size 143mm / Weight 317g Size 155mm / Weight 325g