Uniqlo pajamas made of soft material Set of striped T-shirt and solid-colored shorts - Size: 120 - Material: 71% cotton, 25% polyester, 4% polyurethane - Design: Striped T-shirt and solid-colored shorts - Color: Blue, white, and red stripes Thank you for viewing. I used these for travel, so they haven't been worn much. There is a mark from a black marker on the left sleeve. Personally, I don't think it's very noticeable...