Whether bombing the local trails cruising the bike paths or commuting the redesigned Riva is a great all-around womens waterproof saddle for road or mountain use with a plush yet supportive ride. Womens Body Geometry cutout is medically tested to reduce soft tissue pressure Supportive tuned PP base provides all day comfort Lightweight medium density foam tuned specifically for women Light & super durable hollow Cr-Mo rails Vacuum formed construction creates durable & waterproof saddle Size 155mm