I like the quality of these socks. The toe seam is flat and stretchy, unlike some other "seamless" socks where the seam, although flat, doesn't stretch and feels like a rope being pulled over your toes. I have a problem with these socks - the sizing. I ordered size 3-5 for my daughter. The socks fit me, a 6ft adult. I'll try to wash it hot, let's see if they sit down. However, this is quite a big discrepancy in sizes, marked and true sizes.