The last cooler backpack you should need to buy
A bag that lives on boat decks, truck beds, and airport floors has to earn its keep. The JustinCASE is made for that life: a leakproof liner inside, Fidlock magnetic buckles that open one-handed and close without forcing, adjustable paracord straps that lash gear to the outside. All of it comes in at 3.1 lbs. Behind the hardware sits the promise. A 94.5-year warranty against defects in materials or craftsmanship, and 100 days to try it with a full refund if it is not right. You are not buying a season of use. You are buying the bag.
30 cans + ice
Capacity
3.1 lbs
Weight
Fits overhead bins
Carry-on
94.5 years
Warranty
Built to last, backed for 94.5 years
Gear that gets replaced every season is not cheap. It is just billed in installments. The JustinCASE is built the other way: a leakproof liner, Fidlock magnetic buckles that open one-handed, adjustable paracord straps that lash gear to the outside, all of it at 3.1 lbs. Behind it stands a 94.5-year warranty against defects in materials or craftsmanship. If a defect shows up, we make it right.
The first and only convertible backpack
All cooler, all dry storage, or both at the same time. The patent-pending Dual-Mode Shelf is included with every JustinCASE and lets you split the interior however the day demands. No extra gear, no tradeoffs.
Try it for 100 days.
Keep it for 94.5 years.
Travel with it. Do your best to find its limits. If it isn't right, send it back within 100 days for a full refund. No forms, no hoops. And if it ever fails on a defect, the 94.5-year warranty has you covered.
Build yours100
day refund window
94.5
year warranty
3
packing modes
Free
contiguous US shipping
Questions, answered
What are the dimensions?+
The 2026 catalog lists the 2nd Gen JustinCASE at 21 inches high, 13.35 inches wide, and 8.35 inches deep. Check your airline's current size and weight limits before flying, including how the bag fits when packed.
How long does it keep ice cold?+
The owner's guide describes 24+ hours of ice retention. For best performance, start with chilled contents and a 2:1 ratio of ice to contents. Actual results depend on packing, outside temperature, and how often you open the cooler.
Can I take it on a plane?+
The JustinCASE is designed for standard overhead bins. Check your airline's size and weight limits before flying, and pack it as dry storage for the trip. Convert it to a cooler when you arrive.
How does it keep clothes dry and drinks cold at the same time?+
A patent-pending internal liner separates the cold compartment from dry storage. Install the Dual-Mode Shelf™ with the JC logo upright: cold drinks and ice go above, up to 11 lbs total, and dry gear goes below.
How durable is it?+
Built to take a beating at just over 3 lbs, easy to carry on daily trips. Backed by a 94.5-year warranty against defects in materials or craftsmanship.
What if it isn't right for me?+
Try it for 100 days. If it isn't right, send it back for a full refund. No forms, no hoops. We've offered this since day one.
One bag.
Every adventure.
Cold drinks, dry gear, and nothing left behind. Pick your colorway and go.
Build yours for $299