Eastbay Sleeveless Mesh Jersey - Men's Team up with the Eastbay Mesh Sleeveless Full-Button Jersey and get a proven winner. This 100% polyester mesh jersey features moisture management technology that will leave you and your team cool and dry in the games hottest moments. Great for personalization, this baseball jersey will make a statement about your team. Get the winning attitude with the Eastbay Mesh Sleeveless Full-Button Jersey. Imported.