Star Wars Boys T-Shirt Ages 8-20 BB8 Atmosphere Long Sleeves Star Wars Boys T-Shirt Age 8 BB8 Atmosphere Long Sleeves Small Gray Black 50% Cotton, 50% Polyester Crew Neck Long Sleeves Size Chart: Age 8 (Small), Ages 10-12 (Medium), Ages 14-16 (Large), Ages 18-20 (X-Large)