"I got this costume for my 5-year-old son who is really into Sonic. The costume runs very small (we bought an 8-10 size), but luckily we knew that from other reviews. It fit perfectly from the knees up (with room for warm clothes underneath); I did roll up the bottom of the pants and tacked them up with a few stitches since it is pretty long. The shoe covers hide all of that though. My son loved it, and I thought he looked adorable!"