This is sweatshirt material. It's a 3/4 sleeve, so it's cute for layering(^^) See the third photo for reference. The black long-sleeved T-shirt underneath is not included. [About Washing] Since this is a handmade item, we recommend washing it in a laundry net. Each item is carefully made, but as it is a handmade item by an amateur, there may be some unevenness in the seams. Please understand. We are looking forward to your purchase if you understand that this is a handmade item. Thank you for viewing. Handmade Children's clothing Handmade kids