The Under Armour, Mens Tech, Shortsleeve T-Shirt offers the perfect balance between high performance and durability. The technology built in to this T-Shirt is incredible. The 4-Way Stretch fabric helps conformation to body shapes of all shapes and sizes while the lightweight ensures sweat is wicked away fast, leaving you feeling cool and fresh even on the warmest of days through the signature moisture transport system. There is no restrictions on the range of movement with the innovative Raglan sleeve construction and flatlock seaming. The fabric is made using a combination of Polyester and Elastane, giving outstanding comfort and feel. Size Chart Chest: (cm) | Waist (cm) Small: 86.4-91.4 | 71.1-73.7 Medium: 96.5-101.6 | 76.2-81.3 Large: 106.7-111.8 | 86.4-91.4 Extra Large: 116.8-121.9 | 96.5-101.6 XX Large: 127-132.1 | 106.7-111.8