100% performance polyester Soft fleece lining, long sleeves / crew neck Screen printed graphics on front/blank on back Boys Youth sizing: Small (8), Medium (10-12), Large (14-16), X-Large (18-20) Officially licensed MLB product Stay warm while cheering on your favorite team in this MLB Little Boys / Big Boys Performance Fleece Crew Neck Long Sleeve Sweatshirt. Screen printed team graphics on front, blank on back. Soft fleece lining for comfort. Big boys (8-20) and Little boys (4-7) sizing.