MUJI (Mujirushi Ryohin) Crew Neck Long Sleeve T-Shirt Size: Kids 120 Color: White / Charcoal Gray Set of 2 96% Cotton 4% Polyurethane Comfortable to wear with soft, fluffy cotton material. The moderate thickness, not too thin, makes it ideal as an inner layer for the cold season. Both have been worn very little. I think it was about 2 or 3 times. There are no noticeable stains or damage, and they are in good condition, but there may be some slight pilling from washing. Please understand that these are used items.