Or, at least it appears the mid-soles of my 5.10s were, and it's just disintegrated inside my washing machine. Ooops!
My old ones were like that, absolute joke tbh. My newer ones have a sort of fibrous, plasticky-feeling thing instead.
Bit crap isn't it. Almost makes me wonder if you could argue not fit for purpose.
Dont put shoes in the washing machine they are not meant for it.
Oh. I've always washed fabric shoes in the washing machine. Oh well.
Don't worry about that, mine never went in the washing machine but they still disintegrated. Good shoes for the time they lasted, which was approximately 1/3d as long as my AM40s, which do some things better and some things worse.
I had this, its crap isnt it. I replaced the midsoles with home made correx ones. (correx is estate agent sign board) have been brilliant ever since.