The zipper on the inside has come off, as I've been using this for about a year. Since it's on the inside, it doesn't look out of place from the outside! There are no tears in the inner fabric or the outer fabric, so I think you can still use it! I originally had the guarantee, but I lost it. I might be able to find it if I look, but please don't count on it! I've set it up so you can use the authentication service, so please use it if you're worried! Black nylon shoulder bag with PRADA logo. - Brand: PRADA - Color: Black - Material: Nylon - Logo: PRADA logo plate - Zipper: Zipper with leather pull Thank you for viewing. Color: Black系 (Black-based)