- Compatible with 5156 and 5157 hydration packs for clean on-the-go hydration (packs sold separately).
- High-quality thermoplastic to withstand wear and tear, no plastic taste or smell.
- Antimicrobial bite valve with cover protects against contaminants for clean, safe hydration.
- 60 mm cap inside 80 mm cap for easy no-spill filling with water or ice.
- Insulated tube keeps water cool in the heat.
- Chill-Its 5159 Hydration Pack Cleaning Kit sold separately.
This 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.