The Schwalbe 700c Presta Road Tube is an expertly crafted butyl tube designed for durability and reliability. Schwalbe understands that the key to a successful ride lies, fundamentally, on the shoulders of the tubes. Schwalbe’s manufacture process creates an extremely pure rubber compound and includes testing and inspection of each and every tube to verify performance. The result is a high quality tube that retains more air over time, requiring less frequent inflation.