Iso50’s “1976” design is now available in American Apparel Heather Grey Tri-blend. These AA heather shirts have quickly become a favorite among Iso50’s apparel, being incredibly soft and fitting great. This is the first ISO50 shirt that has been printed on the tri-blend, and there will be more to come in the future. This limited initial printing will go very fast, so head on over to the ISO50 shop and pick yours up.