Our Disposable hydration system is 100% taste-free, BPA-free, PVC-free and therefore we guarantee your water will taste pure water. The Disposable allows you to use a new fresh bladder on regular basis by simply use it, remove it, replace it and recycle the bladder. It requires no cleaning or scrubbing inside the bladder. Just replace the used bladder with a new and GO! If you're using pure water the bladder can be reused number of times Specifications:Material: PET/NY/PEIncluding: bite valve, drink tube, adaptor and bladderDisposable bladderNo need to clean your bladderRecyclableTaste-freeBPA-freePVC-freeAccessible price pointFit in most packs Product Care; Disposable Bladder cleaning;Drain all remaining water and clean the bladder with mild soap and waterLet the bladder dry out completely while hanging/standing with the cap at the bottomBladders used with pure water can be reused number of timesBladders that have been filled with liquids other than pure water should be replaced after each use due to the risk of bacterial growth inside the bladder. Please recycle the used bladder by tossing it in a bin. Bladders that's worn out should be replaced with a new fresh refill bladder