I read the reviews of this product prior to purchase and am disappointed to report this didn't perform well. The mat sheds quite a lot when other reviewers said it didn't or very little. The non-slip does not work on a concrete surface, so the mat slips around more than it should. Also, it was clear when the product was stored that it wasn't flat, so the mat got scrunched up in the box and has a crease that won't come out on one of the ends. I wanted to return it, but wayfair charges so much for return shipping that it wasn't worth it.