This is a flannel shirt from MUJI! When my child was in kindergarten, I had them wear it over a T-shirt, but they often took it off right away, so it's a clean item without any pilling or stains (*^^*) The third button from the top is sewn on with red thread, which is a little stylish and cute! - Size: 100 - Brand: MUJI - Color: Blue check - Pocket: With chest pocket Gender...Boy Gender...Girl Material...Cotton Type...Long sleeve shirt