The Revolution of Cold Chilled for 4+ hours
Our Journey Series™ Insulated Hydration Packs offer the revolutionary insulation you expect from Hydro Flask, with our Cold Flow™ system that keeps water cold for over four hours. The insulated reservoir and neoprene sleeve with reflective lining maintain cold water temperature, while the articulated back panel lets air flow between you and your pack to prevent body heat transfer. Our Insulated Hydration Packs are the perfect solution to stay cool on your favorite ride, with enough capacity for trail essentials. Stay refreshed and enjoy the journey.
Revolutionary Cold Flow™ System keeps water cold for over 4 hours.
Our revolutionary Cold Flow™ System includes the first ever insulated reservoir, neoprene reservoir sleeve with reflective lining and articulated back panel to keep water cold for over 4 hours.
HydraPak® IsoBound™ 3 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.
- Revolutionary Cold Flow™ system keeps water cold for over 4 hours
- Articulated back panel follows the curvature of the spine in one seamless piece for optimal comfort
- Molded padded back panel with center mesh for added ventilation
- Fully adjustable shoulder, sternum, and hip straps
- Durable coated waterproof fabric with taped seams and coated zippers helps keep moisture out, leaving your items dry
- Puncture, tear, and abrasion resistant, yet lightweight
- High-flow HydraPak® Blaster™ Bite Valve self-seals after each sip and features a twist on/off bar to prevent leaks when not in use
- HydraPak® Plug-N-Play™ connect system lets you easily disconnect the hose (an auto shutoff valve prevents leaking) and remove the reservoir from your pack for convenient refilling
- Removable magnetic hose clip for easy access to water on the move
- Internal compartment with stretch mesh pockets for easy organization
- Fully lined front pocket
- Easy access side pocket for smaller trail essentials
- Webbing for a bike light attachment
- Reflective hits for low light rides to and from the trail
- Comfortable FIt
- Watertight Construction
- Lifetime Warranty
- Volume: 20 L
- S/M - 3.5 lbs
- M/L - 3.6 lbs
- Series: Journey Series
- Best Use: Mountain Biking
- Water Capacity: 3 L
- S/M – 18.5” H x 11.5” W x 10.2” D
- M/L – 20” H x 11.5” W x 10.2” D
- Number of Exterior Pockets: 4
- Gender: Unisex