The Tube Trekker Organic T-Shirt is made from ringspun, long-staple organic cotton that’s sourced from member farms of the Texas Organic Cotton Marketing Cooperative. Original artwork is screen-printed with inks that are PVC- and phthalate-free. Crewneck styling and taped shoulder seams for comfort and fit retention. Sturdy side seams keep garment from twisting and shrinking when washed. Fair Trade Certified™ for sewn.