We previously noted that Yeti had suspended sales of our backpack pick, the Hopper M20, due to a potential safety issue with the closure, which could fail, releasing magnets, which would be dangerous to ingest. If you want a backpack cooler, we recommend the Polar Bear Original Nylon Backpack Cooler. Since joining the Reviewed in 2012, Jon has helped launch the company’s efforts in reviewing laptops, vacuums, and outdoor gear. In the pursuit of data, he’s plunged his hands into freezing cold water, consented to be literally dragged through the mud, and watched paint dry.
The straps are adjustable so that carrying the cooler is a piece of cake, and the grip handles are made of rubber to ensure that. Color options for this cooler include slate blue and tan, sandstone and red, and tank green and black, which should blend in depending on what environment you’re exploring. Ice bags weigh between 1 and 3 lbs for an easy carry, and you can carry up to 30 cans, depending on which bag you choose. This Igloo soft side cooler is another option with an adjustable shoulder strap so that you can carry it in whatever way feels comfortable. Handlebar attachments specifically for bike rides are included, and the metal bottle opener helps in case you’re carrying beers. The Original is made with an exterior of 840-denier UV-resistant nylon wrapped around open-cell foam.
Closed-cell foam is also much more expensive to produce than open-cell foam. The resulting product is strong and especially rigid feeling, and typically it weighs more than 1.7 pounds per cubic foot with more than 90% of its air cells closed to one another. Closed-cell foam is also water-impermeable—so it’s an ideal material for, say, surfers’ wetsuits. This simple lunch-box-style cooler is insulated with thick closed-cell foam and made from a durable coated nylon. Similar to any other true roto-molded cooler, the RTIC 65 is practically indestructible, which makes it great for tougher outdoor environments. In our testing, the RTIC 65 kept ice frozen for 10 days with some periodic draining.
Technically less insulating than closed-cell foam, open-cell foam performs fairly well for most applications as long as the cooler isn’t left in the open sun. The Original can do exactly what you need it to do, which is to keep things cold for the day while you focus on the fun at hand. Other Features
A few other notable igloo trailmate features to be on the lookout for include integrated bottle openers and vacuum ports for adding or releasing air. ICEMULE’s Classic has a similar valve system, although in this case, the process involves adding air to boost cooling capabilities and buoyancy and removing it to compress the cooler down for storage.
Lunches you bring to work are secure and kept cold with the Daytripper Bag, whether you’re going to work or the local park on a day off. The Nylon/Poly Blend keeps the soft cooler comfortable enough for an easy carry but tough enough to keep everything inside secure. Different types of insulation work in their own ways to minimize heat transfer into a cooler. Open- and closed-cell foams act as insulators igloo soft cooler to reduce heat conduction, while fabrics and liners, such as coated polyurethane and reflective Mylar, create a radiant barrier that reduces and reflects heat radiation. If you’re wondering what kind of foam your cooler has, a good rule of thumb is to try to squeeze the foam with your fingers. If your fingers can compress the foam more than 75%, you’re probably dealing with open-cell foam.
To keep the weight down, this Pelican soft cooler’s insulation measures only half-an-inch thick. It kept its interior below 40°F for 27 hours—one of the lowest of any of the soft coolers we tested. A tough, reliable soft cooler can keep your food and beverages cold while you hike, take a day trip, picnic, or tailgate. Best of all, unlike a hard-sided cooler, many of the best soft coolers can be collapsed down for easy storage when not in use. Dry bags are a staple of river trips, as are heavy, bulky hard-sided coolers.