The STREEM saddle features Ritchey's revolutionary patented Vector Wing technology, which helps eliminate congestion by more evenly dispersing pressure for all-day comfort wherever you pedal. The Streem saddle with steel rails, slimmer front end and medium padding uses a low-profile design and features a vinyl cover. Specifications : Vector Wing design Dimensions : 278x132mm Rails : steel Rail dimensions : 7x7mm Shell : Nylon + glass fiber Padding : polyurethane foam Cover : vinyl Weight : 260g Color : black