All the seams on every Kellsport heavyweight sweatshirt are sewn twice for extra strength. Kellsport sweatshirts need to last from 7 - 10 years, and we make sure that they do. We've been doing it this way for almost 40 years.
Sweatpants are not exchangeable or returnable for any reason. If you have not worn these before, or are not comfortable with the sizing risks, please do not buy this item. It is the greatest pair of sweatpants available anywhere. And they will last for years and years. But it can be difficult to guess on the correct size because of the way we have to make them. They are very long when new. The legs will shrink from 4" - 6" when washed, and the legs get narrow. When worn, the fabric gives back most of the shrinkage in the width. The fabric goes through this shrinkage cycle only one time. We have thousands of people that have been buying these pants for 30+ years.