I ordered 5 items and kept 2. All were on the small side. One was so small, though marked "medium" from the Old Navy, that I thought it might have been a children's size. It had clearly been shrunk which is one issue they say they don't accept. I am generally a size small at the Gap, Old Navy, etc. All the items were marked medium, none of them were a true medium size. I liked the swimsuit top and cashmere hoodie, they were on the small size but I kept them. They were good value for the price. I would suggest that ThredUp take a look at their sizing metrics. Otherwise, it is for juniors and adolescents or women who don't eat. Sadly, all the unacceptable items were "final" sale. Off to Goodwill.