I bought a bottom and top for my grandchild. We ended up having to buy the next size up top, but the bottoms fit perfect. She's tall for her age. It's helpful being able to buy different sizes for each piece. I was very pleased with the both pieces. The fact that the bottoms are lined was a big plus (they just fit nicer and I'm sure feel more comfortable) and I try to buy only items made in the U.S.A., which was also a big positive. The fact that it says both pieces can be washed and dried in the dryer makes it easy for her parents. All in all, I was very impressed and bought a second top and bottom. They seemed a little expensive for something a child will outgrow fairly quickly, but you get what you pay for, and these are definitely a quality product.