I dressed my son in this for his first Christmas. It's too good to only wear for Christmas, so we also used it as pajamas. It's made of fleece material, and the hat has elastic in it. I took photos with a measuring tape to show the dimensions, so please check the pictures. I plan to ship it via Rakuraku Mercari Bin or Takkyubin Compact. Please consider this item, keeping in mind that it is a used item.