Hi I'm new to the boards but I've been building props and costumes for a few years now. I'm beginning to make some back to the future part 2 Nike trainers. What I'm planning to do is to heavily modify a pair of Nike Greco Supreme, a style of boxing trainer that has the high top similar to the future nikes. I've been looking for a while now for some foam that I can make the soles of the trainers out of and also the MAG logo on the back but have come up empty handed. I've a feeling its the same foam used to make sports sandals. I've been looking for a place I can order a block of this stuff in order to shape the foam then stitch to the trainer. Can anyone point me in the right direction?