The Model X tee is made from hand picked, long grain GMO Free Peruvian cotton. Peru is the only country in the world where the pick-up of cotton is done by hand and in large scale. This proud practice of hand picking the cotton has been done in Peru for over 4500 years. In this way any injury or damage to the fiber is avoided and therefore no chemicals are needed to open the cotton plant, making it environmentally friendly. The cotton is strong yet very soft and lustrous and will get even softer with every wash, making this piece a guaranteed favorite for years to come.