By A Mystery Man Writer
The 3.0-liter water/ice bladder, rechargeable battery and miniature pump within the backpack make this a self-contained and portable cooling system.
Backpack Full Body ICE Water Cooling System 3.0L Detachable Bladder and 7.4V Battery
COMPCOOLER Backpack ICE Water Cooling System includes Mesh Liquid Cooling Vest and Self-Contained Backpack Circulation Unit with 3.0L Detachable Bladder and 7.4V Battery (XS/S) : Sports & Outdoors
COMPCOOLER Backpack ICE Water Cooling System 3.0 L bladder ON/OFF Mode
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