Upstream Studios t-shirts are produced using American Apparel shirts, silk-screened (by hand) using water-based inks. Currently our designs are available on non-organic shirts, but we are taking steps to become an all organic, environmentally friendly (using low impact inks and dyes) label. Our designs currrently can be made on organic, un-dyed shirts as part of a special order. They are available in sizes ranging from XS-XXXL in various Men's and Women's styles.