You can buy Mike Tyson t-shirts from the online store RootsofFight.com. The store sells multiple designs available on t-shirts, sweaters, tank tops and more. The website ships its products internationally.
The Roots of Fight store sells Mike Tyson t-shirts for $39.95, tank tops for $34.95, hoodies for $79.95 and pullover sweaters for $74.95, as of 2015. Also available are thermal shirts and sweatshirts. The designs available include text such as "BROOKLYN'S OWN IRON MIKE TYSON HEAVYWEIGHT CHAMPION." Some designs have a photo of Mike and some have only text. Most of the apparel are in men's style only, but there are a few options for women as well. The website ships anywhere in the USA in six to 10 days and internationally in 10 to 20 days.