Make sure to check the stitching on the inside of the bag too. Some fakes hide their sloppy work inside. [2] X Research source

If the bag’s lining is sloppy, bumpy, or loose, then there’s a good chance that the bag you’re considering is a fake.

Usually, the underside of the zipper pull will have a logo. Many handbag manufacturers use the same high-quality zipper manufacturer on all of their bags. So when in doubt, check for this as well! Balenciaga, for instance, typically uses zippers with “Lampo” printed on the back.

Some fake bags may have authenticity tags, but the text will be in a different font and size than the original. [6] X Research source These numbers are sort of like a passport or license—they give one bag a unique identity, making it way harder to replicate. If your bag is missing one, that’s a red flag! A lot of the time, these codes can be searched online with code checkers. This is a great way to tell if your bag is fake, but not an effective way to be sure that it’s real (because even though it’s hard, codes can be replicated by scammers).

Real designer bags’ hardware is metal, while many fakes use plastic. Unlike plastic, metal hardware will absorb heat or cold. So quickly feel your bag’s hardware—if it’s been sitting out in the sunshine, is it hot? If it’s been in an air-conditioned room, is it a little chillier?[8] X Research source

For example, fake Michael Kors bags often feature an “M” charm instead of “MK” hanging from the handle. Meanwhile, fake Yves Saint Laurent bags often have an “SL” charm instead of “YSL. "

Checking Louis Vuitton purses. Checking Coach purses. Checking Michael Kors purses. Checking Furla purses. Checking Prada purses. Checking Versace purses. Checking Vera Bradley purses. Checking Ralph Lauren purses.

If you want extra security, ask if there are any certificates of authenticity accompanying the bag. If you have plans to sell it second-hand down the line, this’ll also help you prove that you’re not a scammer to future buyers!

Know all you can about designer bags if you’re purchasing from estate sales, thrift stores, or online auction sites.

Ask the vendor if the bag is real, a copy, or a fake. Sellers who avoid answering questions have something to hide. [14] X Research source