SRP 39.95- Fits most backpacks that are hydration ready. This 3L reservoir is a standard inclusion in the Caribee Nuke 3L Hi Vis hydration pack but available for sale for any brand of H20 compaible bag. Spec- Volume: 3L. Made from PEVA material that is BPA, Phthalate and PVC free. Innovative fold top reservoir with slide lock closure for quick filling and easy access for cleaning. Quick Release, non-leak, tube removal function allows quick and simple fitting and removal from your pack. Fully insulated drink tube to help reduce external thermal effects. High flow mouth piece with bite valve on/off flow function. Mouth piece dust cover. Youtube- https://youtu.be/wuZIjE_XoL8"