Chill-its 5051b Bladder Replacement, 3 L, Blue

The Chill-Its 5051B Three-Liter Replacement Bladder is compatible with the 5156 and 5157 Hydration Packs (sold separately). The bladder features a DualCap for easy no-spill filling with water or ice, plus an insulated tube to keep water cool in the heat.Note: This is a non-returnable item.