It's big enough to fit a 500ml plastic bottle horizontally. Very convenient with three pockets inside and one outside. The belt is sturdy. There is some scuffing on the corners of the bottom. It's not noticeable when in use, but please understand that this is a used item. I haven't used it much, so overall it's in good condition. No stains inside. Thank you! A COACH shoulder bag with a logo pattern on black leather. The adjustable strap makes it very easy to use. - Brand: COACH - Color: Black - Design: Logo Pattern - Material: Leather - Strap Length: Adjustable Thank you for looking.