An Men's Small to 3XL sized 5.3 ounce heavy cotton classic fit round neck short sleeve T-Shirts.Gildan 5.3 ounce T-Shirts, 100% Cotton. 50/50 Cotton/Poly (Graphite Heather). Seamless double-needle 7/8 inches collar. Taped neck and shoulders. Tearaway label Adult men. T-Shirts Specifications Small: Chest 34~36" Medium: Chest 38~40" Large: Chest 42~44"? XLarge: Chest 46~48" 2XLarge: Chest 50~52" 3XLarge: Chest 54~56".