This unique printing process actually pulls the dye color out of the shirt and leaves the ink color behind, essentially dyeing the cotton with the ink. The Mountain Classic T-shirt features an over-sized relaxed fit, with reinforced double-stitching on all seams. After dyeing they are washed and dried, so they arrive to you comfortable, pre-shrunk & ready to wear. This heavyweight 100% Cotton tee will last you years and years. What makes these shirts great? Small carbon footprint — We create, develop, dye, and print in our facility in Marlborough, NH and ship from our offices in Keene, NH – just 3 miles away! That makes us unique in an industry where many companies dye and print apparel overseas. Materials sourced in the United States — More than 80% of the cotton used in our t-shirts is grown right here in the USA. Environmentally friendly inks — We are the pioneers of using water based inks to create the incredible designs on our graphic t-shirts. This means that a Mountain t-shirt maintains an amazingly soft feel and a bold, bright look that will last for as long as you own the shirt. Dye Oxidation System — We have an innovative solution for treating our waste water and transforming it into oxygen enriched water that causes no harm to the environment.