Mens Baseball Team Jersey Button Down T Shirts Plain Short Sleeve Top 100% Cotton/ 100% Polyester Button closure Solid Colors - 100% Cotton (Light Gray - 90% Cotton/10% Polyester) / Striped Colors - 100% Polyester Double-needle seamed hems Button up closures spaced for easy printing and customizations Easy to add on your own custom designs, text, and team logos. Please be advised to see our size chart below for the most accurate fit