Used once for about 2 hours. It's been stored away since then, so I'm hoping someone who can make good use of it will take it. The shoulder strap hasn't been used. It can hold a lot, so you probably won't need a sub-bag for most things. A 350ml PET bottle fits upright. It stands on its own. For those who understand it's been stored at home. Urban Research RODE SKO 2-way tote bag, handbag shoulder bag, boston bag beige formal entrance/enrollment, graduation, Shichi-Go-San (Children's Day)