Chai mattress walkie

Where can I buy that neoprene or foam rubber padding? Like the kind they put on jet ski's where your feet go? - jet ski mats

I have an old jet ski, '91 Kawasaki JS 650, and I need to replace the padding of the foot. Only a couple of nice black base, the type of foam, about 1 / 4 inch thick. I checked on the jet ski, but stores it either no or a very high prices, like $ 70

I just want a role that somewhere cheap and cut to size (how to find them) for another project.

But I checked all the hardware of the city, and sailors in the world, none of them has something. The closest thing I could find is a yoga mat at Wal Mart, but not really ideal.

Has anyone any idea where can I get a role, or something similar. (black, about 1 / 4 inch thick, durable foam). I would rather be in a real shop, so you can feel before buying, but if I buy them online.

Thank you.