This race-ready womens-specific curved saddle is contoured to position the rider for optimal power transfer & comfort while its narrow nose & shorter size provides all day riding comfort. Womens Body Geometry cutout is medically tested to reduce soft tissue pressure Stiff carbon-reinforced shell features womens-specific tuning for all-day riding efficiency Super-light EVA padding for comfort & support on longer Ultra-light & strong oversized FACT carbon rails Tough light & water resistant Micromatrix cover Sizes available 143mm 155mm & 168mm NOTE: Oversized 7x 9mm carbon rails are not compatible with seatposts equipped with side-load clamp mechanisms for 7mm round rails