NANOuniverse LB.04 "A Comfortable Summer Shirt Made of High-Performance Material" This open-collar shirt is made of a light and soft material. It's quick-drying, making it a valuable piece for the sweaty season. The surface has a beautiful weave, while the back has an uneven texture, so even if you sweat, the fabric won't stick to your skin, providing a cool and comfortable feel. It can be worn as a light outer layer or as a main piece, and is recommended for daily use from spring to summer.