Hydro Flask's Down Shift™ Hydration Pack features our revolutionary Cold Flow™ System that keeps water chilled for over 4+ hours. Designed to shift weight down for a stable ride while offering ample storage for your gear. Water stays cool. You stay comfortable. Mile after mile.
HydraPak® IsoBound™ 2 L Insulated Reservoir
High-flow HydraPak® Blaster Bite Valve self-seals after each sip
HydraPak® Plug-N-Play™ connect system lets you easily disconnect the hose and remove the reservoir from your pack for convenient refilling
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