Rolled Sleeve or let down. In very soft airy and light 100% Cotton gauze material. I have the same ones and simply hang to dry and it keeps the shape well. Dried in dryer it puffs a little but can be ironed. Can wear alone or as a light shaket for anywhere. Comes with extra button. Got extras for girls to wear in family photo but did T-shirts instead and opt to sell the extra ones. The top I’m selling is New with tags. XL Flat measurement- Pit to pit 23” Sleeve is 24” Arm opening 11” TOP to BOTTOM is 30”