This bladder is made in Italy, constructed with 1000-denier nylon fabric and a TPU airtight coating. It comes with a 5 mm elastic cord with adjustable length. It is equipped with a universal K-type inflator/deflator valve, and the corrugated hose is available in three lengths, allowing you to choose the size that best fits your body. The bladder also includes two sets of 2-inch high-frequency welded low-profile coarse-thread pressure relief valve bases.