All shirts are 100% preshrunk cotton expect Sport Grey which is a 90/10 blend. Dark color shirts will come with white printing and the sport grey and white shirt print will be black. SHIPPING: All t shirts are mailed via USPS first class mail with free tracking included. MEN'S SIZING CHART: Small-Length 28" Width 18" Medium-Length 29" Width 20" Large-Length 30" Width 22" XL-Length 31" Width 24" 2XL-Length 32" Width 26" Thanks for looking. 6784