This is an undershirt from SSK (エスエスケー). The color is navy, and the size is L. The back is mesh, which prevents heat buildup, making it suitable for exercise. I am also listing many other baseball wear items, including undershirts. #KamiBaseballWear #KamiUndershirt #KamiCompressionWear #KamiSSK #KamiMizuno #KamiMizunoPro #KamiZETT #KamiZETTProStatus I think this is still a useful piece of wear, but it has been used to some extent, so I would appreciate it if you could understand the condition and consider purchasing it. I am also listing many other sports wear items from brands such as Nike, Adidas, Under Armour, Athleta, Puma, Asics, Descente, New Era, Mizuno, Oakley, CW-X, and baseball wear items from Mizuno Pro, Adidas Professional, Under Armour Baseball, SSK, Asics Baseball, ZETT, Rawlings, Nike Baseball, Mitsuwa Tiger, Majestic, etc. Please take a look if you like. #KamiSportswear #KamiBaseballWear #KamiUndershirt #KamiCompressionWear #KamiSSK #SSK #Undershirt #PracticeWear #Baseball #Baseball #Undershirt #tshirt #Tshirt Navy undershirt with stretch, with the SSK logo. - Color: Navy - Logo: SSK logo - Material: Stretchy material