Closed Cell Foam is great for custom outfitting your kayak to fit certain needs. Whether it is making a custom transducer pad, carving new hip pads for your sit inside kayak, adding more flotation to your kayak, or for re-enforcing the deck of your kayak to be able to take a heavier load, the Closed Cell Foam can do it all.
It was great and worked perfected to line my M1C helmet.
The foam was the best I have ever purchased. I will continue to purchase from ACK. The price was very reasonable. I purchased a number of different sizes and they all were of the same great quality.