Our 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.
Cold Flow™ System
Our revolutionary Cold Flow™ System includes an insulated reservoir, neoprene reservoir sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours.
HydraPak® IsoBound™ 2 L insulated sweat proof reservoir helps to maintain cold water temperature for hours.
Neoprene Sleeve with Reflective Lining
Insulating neoprene reservoir sleeve with reflective lining keeps heat out and reflects cold back in.
External Airflow Design
Articulated back panel keeps space between you and your pack, letting air flow to avoid body heat transfer.
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