The Best of Both Worlds — Bounce-Free Running Vest Meets Real Daypack Storage

Designed for movement, engineered for practicality. Secure up front, space in the back — so you stay fast, comfortable, and fully equipped.

Meet the Hydration Adventure Pack, the perfect fusion of a lightweight hydration vest and a versatile hiking day pack. Engineered for outdoor enthusiasts who demand comfort, efficiency, and storage in one streamlined design, this pack adapts to any adventure, from fast-moving trail runs to full-day hikes.

Built-In 2-Liter Hydration Reservoir

Stay refreshed without stopping, thanks to the integrated 2-liter hydration bladder with an easy-access drinking hose. With 2 liters of water capacity, you’ll have enough hydration to power through long hikes, trail runs, and backcountry adventures.

*The 2-liter Hydration Pack does not include a Personal Cooling System (PCS Mist feature).

The Hydration Adventure Pack isn’t just another backpack, it’s a game-changer for outdoor hydration. The Hydration Adventure Pack isn’t just a pack—it’s your trail companion. With its 2-liter water capacity, vest-like stability, and day-pack storage, it’s the ultimate solution for staying fueled, cool, and ready for adventure.

Backpack Features: 

Shoulders

 Stay cool and let your skin breathe with wide, ergonomically shaped mesh shoulder straps.

 Enjoy easy access to your drink tube and the mister with dual hose stays. 

Sides

 Adjust the size of your pack with adjustable Z straps. 

 Stash essentials with zippered side mesh pockets. 

Back

 Keep your 2-liter reservoir secure with its separate compartment and stabilization clip.

 If you add your existing PCS, keep it in place with its own large interior compartment. 

 Organize your outdoor gear in the four additional stretch pockets. 

 Stash your helmet or air out damp clothes in the large outer stretch-mesh compartment.

 Keep your sunglasses safe and scratch-free in a convenient top pocket. 

 Easily attach your pack to the ExtremeMist Detachable Dual Holster Hydration Waist Pack (purchased separately) for additional space and weight distribution.

 Stay visible and safe in the dark with nighttime reflective strips.

Front

 Create the perfect fit with dual adjustable chest straps and vertical slide fittings.

 Keep your snacks and phone close at hand with 5 easy-to-reach pockets. 

 Safely store your essentials in a roomy interior zippered pocket with a key clip.

 Keep your misting remote accessible in either of the secure front pockets.

 Hold your drink tube in place while you’re on the move with a magnetic sternum clasp.*

 Stay visible and safe in the dark with nighttime reflective strips.

2 Liter TSI Water Reservoir

 Reservoir made with food-grade TPU materials that are BPA-free and FDA-approved.

 Easily fill and use your reservoir with a 37” cut-to-fit PVC drink tube. 

 Prevent unwanted leaks through your bite valve with an easy on/off button.

 Keep your water cold on the hottest of days or warm in the winter with its insulated reservoir and hose cover. 

Hydration Backpack Size Chart:

Personal Cooling Specs:

Material: Nylon

Construction: Frameless

Pack Dimensions: (at mid-pack)

Small: 15.75 X 9 inches

Large: 17.5 X 9 inches

Pack Weight: (including reservoir and insulated cover)

Small: 14 ounces

Large: 16 ounces

Reservoir Capacity: 2 liters / 67.63 fluid ounces

Gender: Unisex

Color: Gray or Sky Blue

Compartments/Pockets: 9

Hipbelt: Not included, Detachable Dual Holster Hydration Waist Pack can be purchased separately