Comfortable soft micro-elastic fabric closure Premium Material: This Men’s 3/4 sleeve Baseball T-shirt is made of polyester fiber. It’s breathable, soft and smooth with just the right amount of stretch. Whether you’re out and about or lounging at home, this baseball shirt treats you to impressive comfort. Quality In Design: This two-tone baseball top is carefully made to give you a tee you can proudly wear out. Everything from the stitching to the hem lining is beautifully done, and the casual Polyester t-shirt handles well in the wash without losing shape or running color.