I purchased these during my second trimester. I was able to wear them once a week for months, washing them in a lingerie bag in the washer and letting them air dry in between uses. My local Macys no longer carries them so when they finally wore out, I had to purchase another brand from a well-known maternity store that cost several dollars more. These more expensive stockings were of considerably lesser quality. I ended up taking those back and buying stockings that cost three times the price of these stockings which may have had better support for baby but seem like they may run easier. Overall, these stockings are a great deal. I just wish they still sold them at my local Macys!