This shows the well-placed Velcro strips for securing the bag flat for transport (blue arrows), either in your vehicle or on board your boat or yak. The red arrows show the position of the Velcro straps for securing the opened bag on a yak (or boat), for example to attach it to a crate, cleats, eyestraps, or bungees.
Here is the bag open on deck. The open bag measures 17" deep, 24" along the zipper, and 8" x 18" on the bottom. There is also a 7.5" long zippered pocket on the outside of the bag. To the right of the bag are my ice bags. I fill 2 one-gallon Ziploc bags about 3/4 full with tap water (to allow for expansion as the water freezes). These are then placed in my home freezer for later use. Or, if your frig has an icemaker, you can simply fill the Ziplocs with cubes directly. Or you can use empty plastic containers with lids, fill these to about 80% capacity, and place these in the freezer as well for later use. Block ice always lasts longer than cubed ice (the good ole surface area/volume effect), so I tend to prefer the solid blocks in the Ziploc bags, or in the plastic containers over the cubes.
According to tests conducted by California Innovations, this bag, when packed solid with frozen food, took over 6 hours to reach a temp at which the frozen food began to thaw. The bag is easily cleaned with a sponge and a little dishwashing detergent. So how much? Believe it or not, these bags sell for a grand total of $7.68 each. Soch a deal…
I'd love one but I don't have a membership either. It would be much appreciated if you could bring one by one day. 
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