So what types of foam are folks using for backpack straps and where are you getting it? Just interested in whats out there. I'd love to find something cheap and easily available (I know, shocking right?). I've got a couple rolls of the 3/8" blue foam from Wally-World, which I imagine is about as cheap and available as it gets, but it's not particularly squishy. I haven't actually made any straps with this stuff yet, so if someone has it'd be cool to hear about how it worked out.
I'd be sandwiching the foam between some type of ripstop (whatever I'm using for the pack body) and some of the 4mm foam mesh from rockywoods for the business side - which is really nice stuff by the way.
I'd love to hear folks' thoughts. Thanks!