Hydration Backpack Pack with Cool Lights, 2L Water Bladder, Lightweight Bag f...

Included Components: ‎2L Water Bladder. (No Battery Included). Capacity: ‎2 Liters. Strap Type: ‎Shoulder Strap, Adjustable. Sport: Running. Lens Color: Holographic Pink. Color: Holographic Pink. Part Number: ‎MB-221113.

eBay