This is a 100cm pajama set that I believe I purchased at Birthday(^^) Even my child, who has sensitive skin and only wears cotton, was able to wear these without itching. They were worn quite a bit because they were a favorite. The elastic can be replaced(^^) I forgot whether I replaced it or not. I will pack it to prevent it from getting wet and ship it. I will use recycled packaging materials such as from Yodo○shi Camera, and may compress the items using compression bags or Ziploc bags, so please be aware of this. If it fits, I will make it very compact and send it via Yu-Packet Mini. If it doesn't fit, I plan to send it via Yu-Packet Post or Nekopos. Therefore, I am selling it at a low price(^^) I may change between Yu-Yu and Rakuraku shipping methods. I also have many other items for sale, including newborn, baby clothes, and kids' clothes, from 60, 70, 80, 90, 95, 100, 110, and 120cm sizes, such as rompers, T-shirts, underwear, sweatshirts, outerwear, tops, pants, tights, leggings, socks, pajamas, hats, short sleeves, long sleeves, summer clothes, winter clothes, for boys and girls^^ Season: Winter Sleeve Length: Long Sleeve