There were no size markings on the tag, etc., but it was worn as a winter sleep sack for babies aged 0 to about 2 or 3 years old. In photos 1 and 2, the sleeves and hem are folded back to allow the hands and feet to come out. Photos 3 and 4 show the hands and feet covered. In photo 5, it can be used as a swaddle by passing the button on the left shoulder through the loop on the right hand side. The button on the chest is missing. Shipping will be via Yu-Yu Mercari Bin or Raku-Raku Mercari Bin.