It just came in the mail today, I was sorta expecting to be let down by this product but was surprised. It is actually a pretty tough little wallet and very cool. My EDC in it is 2 credit cards, two University ID cards, a health card, a bus pass and cash. No problemo. Recommended for the low-maintenance user

Edit: after a few days of having my cards slip and fall out, I've decided to change my vote. The Tyvek is too slippery for my cards, they just fall out everywhere whenever I open it. I want so badly to like this product but it plain doesn't work well. Into the trash, $15 idiot tax charged to me.