・This is a black top purchased from THE SHOP TK. ・It's a summer top made of 100% polyester, a smooth, wrinkle-resistant, and quick-drying fabric. ・The wide sleeve openings help to cover the upper arms. ・It can also be worn in spring and autumn if you layer with an undershirt. ・I've only tried it on, but I have washed it once at home. It cost around 4500 yen when I bought it.