BestsellerFrontJustinCASE Convertible Cooler Backpack
Cold or dry. You decide.
★★★★★5.0· 96 reviewsA best-in-class convertible backpack that works as a cooler, dry storage, or both at once. The patent-pending Dual-Mode Shelf™ lets you split the interior however the day demands. No extra gear, no tradeoffs.
“Has become our go to cooler!”
100-day
money-back
Free
contiguous US shipping
94.5-year
warranty
Ships in 1-2 daysFits overhead binsSecure checkout
Questions about fit or cold retention? Read the FAQ
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$299
Midnight Mood
30 cans + ice
Capacity
3.1 lbs
Weight
Fits overhead bins
Carry-on
94.5 years
Warranty
Cold · up to 11 lbs
Dry · clothes & gearOne case. Three ways to pack.
Cold and dry, at the same time.
Install the shelf with the JC logo upright. Pack chilled drinks and ice above, up to 11 lbs total, and keep clothes and gear dry below.
Read the setup and packing guideThe 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.
One bag instead of three
The cooler in one hand, the duffel over a shoulder, the backpack on top of it all. Every outing starts with a load-out. The JustinCASE ends it. A leakproof liner holds up to 30 cans and a bag of ice, the patent-pending Dual-Mode Shelf splits the interior into cold and dry however you decide, and everything rides on your back with your hands free.
Every detail earns its place
Tap the points to explore.
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
Loved on boats, planes,
and every beach in between
96 reviews
Has become our go to cooler!
“We started using the justincase backpack cooler on our private airplane trips and it has now become an essential item of travel. Traveling with young kids means having snacks is a must and this cooler allows for both cold and dry storage making it an all in one solution for us.”
Leslie Frese Malone
Verified buyer
Awesome Product for the boat or while traveling
“We were in the market for a backpack style cooler and ironically we came across the JustinCase Cooler at the perfect time. This is now our go-to cooler for the boat and our Camper Van. Very well designed and rugged. Easy to load up cold or dry items and the bag stays in place while boating or riding in our vehicle. We both love this new bag!”
The Reel 850
Verified buyer
Perfect for the beach
“Great beach bag! Perfect for when you want cold drinks but also want your essentials to stay dry.”
Reel Coastal Fishing
Verified buyer
See it in the wild
Real owners, real trips: boats, beaches, backyards, and the trail. Tap to watch with sound.
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.
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