Measurements when laid flat: 25cm wide, 25cm tall, and 6cm deep. The shoulder strap is 15mm wide and brown. It's convenient for quick shopping trips, holding a long wallet, smartphone, keys, eco-bag, and more. When I finish one, I get so happy that I end up making several (*^_^*) I have a market scheduled for February 2026, so I'll be bringing this one along. There's a chance it will return, but if you're considering buying it, please consider it soon (*´∀｀*)