Better without the bulk.
Built to withstand epic adventures but light enough to carry for miles, our 18 L Unbound Series™ Soft Cooler Tote is designed to give you the coldest leakproof cooler experience without the added bulk. Our Soft Cooler Totes give you multiple carry options to get you further. Why carry the extra weight when you can enjoy any adventure unbound?

Smart Insulation
Our unique cold-retaining technology puts thicker insulation in the base where cold is most susceptible to loss, keeping your contents cold for up to 48 hours.


Lightweight Durability
Carefully selected materials with an innovative weight-conscious design brings you the lightest, durable cooler in its class.
Watertight Construction
YKK's AQUASEAL® zipper and welded seams ensure leakproof transport: no water in and no water out.


Easy-Access Top
Wide mouth hinged top makes for easy access and easy cleaning.
Product Benefits
- Smart Insulation keeps your contents cold for up to 48 hours
- The lightest, most durable cooler in its class
- YKK's Watertight AQUASEAL® zipper and welded seams ensure leakproof transport: no water in and no water out
- Durable 420D nylon shell is ultra-light and waterproof
- Wide mouth hinged top makes for easy access and easy cleaning
- Compression-molded base for unsupported self-standing
- Removable shoulder strap for multiple carry options
- FDA food grade, BPA-free liner: free from toxins, free from worry and easy to clean
- Side pockets keep your small essentials at the ready
- Four welded nylon tie-down loops for added stability
Size and Dimensions
18 L | |
---|---|
Volume | 18 L |
Weight | 2.8 lb |
Series | Unbound Series |
Number of Exterior Pockets | 2 |
We have great faith in our products
Hydro Flask guarantees this product with a limited five-year warranty against manufacturer defects.
Hydro Flask supports non-profit organisations focusing on building, maintaining, restoring and providing better access to parks. Since 2017, we have been doing just that:
-
92 Non-profits supported non-profits.
-
$1.5 million Dollars (approx. £1.197 million) donated donated.
-
26,043 Bottles donated bottles.
Hydro Flask supports non-profit organisations focusing on building, maintaining, restoring and providing better access to parks. Since 2017, we have been doing just that:
-
92 Non-profits supported non-profits.
-
$1.5 million Dollars (approx. £1.197 million) donated donated.
-
26,043 Bottles donated bottles.