This is trainer fabric (^^) It's a 3/4 sleeve, so you can layer it and wear it cutely (^^) [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 waiting for your purchase if you understand that this is a handmade item. Thank you for viewing. Handmade Children's clothing Handmade kids