Shirts are a 50/50% cotton poly blend. They are preshrunk and machine washable. Material: 5.4 oz., 50% cotton, 50% polyester Made with sustainably sourced USA grown cotton Feature: Double-needle coverstitched front neck Shoulder-to-Shoulder tape Double-needle stitched hemmed sleeves and bottom 1x1 rib seamed collar Designs are sublimated with a slight vintage fade. The design will not fade or crack in the wash.