100% Pre-shrunk cotton. Short sleeve, crewneck, 4.2 oz light-weight modern cut tee shirt, which means that it has an equipped cut. The heather grey t-shirts are made from a soft 90/10 cotton/poly mix. Ultra-thin t-shirts are a 3.4 oz tri-blend of 50% polyester, 25% cotton, and 25% rayon. This one-of-a-kind mix develops a soft, light-weight tee shirt that lasts. All various other shades are 100% Cotton. We normally supply Canvas brand equipped cut t-shirts, believe "American Garments" Design. The Tri-Blend Ultra-Thin t-shirts are extremely thin and comfy. If you desire a looser tee shirt, please order a size bigger than you normally wear. All of our t-shirts are published on a state-of-the-art Straight to Garment printer, which offers you the finest vibrant visuals photos. They are not "iron on" photos that will certainly flake off in a few laundries, however are made to look as great 100 laundries from currently as they do right out of the bundle. Thanks and enjoy your tee shirt!