Mens Birthday Shirts for 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, and 1979 Please check the size dimensions in the descriptions to ensure a proper fit. 4.5 oz. pre-shrunk 100% Softstyle Cotton (35/65 polyblend for Heather Gray and Red only) Double-needle stitched neckline and sleeves Gildan Softstyle shirts Crew Neck