GUC. I bought these in 2009 at a store in Italy. They’ve been sitting unused in my closet for years. Have some wear on the heel. Leather. It is a thong sandal, but it wraps around the big toe. See images. Size EU 38, which is roughly 7.5. I’m an 8.5 they are a bit small. So they’d fit a 7.5-8.