This is a warm romper featuring a Winnie the Pooh design from Pet Paradise. It's made of fleece-lined material, so I think it will be warm. I've used it a few times. There may be some signs of wear, but I think it can still be used. The size is SS. Please understand that this is a used item. Shipping will be either Rakuraku Mercari or Kurakaku Mercari, so please be aware of that.