These are well-made bags! We've washed with them about 5 times now. There are no raw edges to fray and the mesh is sturdy. When closed, the zipper pull is hidden by a flap of fabric so it will not pull open in the wash or pull on other fabrics. My only gripe is these are SO BIG! I bought the set expecting to use the smaller one for baby socks and the larger one for nursing pads, but seriously, you can fit a man's sweater in the big one and a woman's sweater in the smaller one! Still, I prefer these to the pyramid shaped one [for bras?] we have which has ribbing coming out of the seams and is fraying all over. We bought 2 sets here for less than a comparable item at the competition bedding, bath, etc chain store.