3T GAP lines girl jeans

3T girls winter jeans from GAP with fleece lining inside. Run small and in my opinion are 2-3T as they were too small for my three-year old daughter who is definitely an average size. I ended up buying the 4T ones and they fit her right. Only worn a couple of times but did manage to get a small and not noticeable white dot/spot on the bottom. See photo