100% Ringspun Semi-Combed Cotton. Fabric: Jersey. Design: Plain. Neckline: Crew Neck, Elastane, Reinforced, Ribbed, Taped. Sleeve-Type: Short-Sleeved. Side Seams, Tubular. 150gsm. Thread Count: 150. 2 Years: 22.5 in. 4 Years: 25 in. 6 Years: 27.5 in. 8 Years: 30 in. 10 Years: 32 in. 12 Years: 34.5 in.