I bought the L size because in the description it's recommended to buy one size up. However that was not the case for me. I returned the item and got the M size of the "Leah" version, as the "Becky" one were sold out. I really like them, they are very soft and have a "fresh" feeling. I also love the fact that they are made from recycled plastic bottles. The costumer service was great and the leggings arrived wrapped up in a nice paper, like a present, with a cute handwritten card. <3 just lovely. Thank you!