PETIT BATEAU Petit Bateau Reversible Long Sleeve Border T-shirt Size: 86cm / 24 months The tag has been cut off, so the material is unknown, but it is soft and feels good against the skin. It's made of two layers of thin material. This fabric seems suitable for spring and autumn. I don't see any major stains or fraying, but this is a used item that a child has worn, so please refrain from purchasing if you are sensitive to such things. Shipping is planned via Nekopos or Yu-packet.