Check the closings of a potential suitcase

The simpler, the better. If there’s a zipper, it should be tough and run smoothly. Zippers should also be double-stitched (stitched on both sides of the zipper) and self-repairing or large, very sturdy, and smooth-running. Zippers made of polyester coils that have been woven or sewn to tapes can take a lot of pressure and can be fixed if they pop open. Large zipper pulls are always easier to work with.