adidas Boston Celtics Slimmer Fit On-Court Dark Grey Pre-Game Ultimate Synthetic Long Sleeve T Shirt Authentic NBA On-Court Pre-Game Gear NBA Officially Licensed Boston Celtics Apparel Screened Front Chest Team & Adidas Graphics Made from 100% Polyester Material, Slimmer Fit Body Raglan Body, Crew Neck, Long Sleeves, Machine Washable