Amazon.com has a Bell Back 50 Hydration Pack for $29.99 with Free Shipping.
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- Storage for pump, patch kits, energy bars, keys, and more n
- Backpack-style hydration pack with 1.5-liter capacity n
- Soft tooth bite valve and long tube for quick hands-free sips n
- Breathable mesh padding keeps back cooler n
- Adjustable contoured shoulder straps fit wide range of bodies