This is a set of two baseball undershirts. Navy, size 130 This undershirt pursues the ultimate wearing comfort, with excellent stretchability that allows for great flexibility, a smooth and soft texture, and a lightweight feel that doesn't hinder any movement. The LF Stretch Knit II, developed with a focus on comfort, also boasts excellent sweat absorption and quick-drying properties, allowing you to experience the best wearing comfort. It features ZETT's unique light fit pattern, which reduces tightness on the body and minimizes bagginess.