Ninjas are everywhere. This shirt, inspired by some of the awesome players of American Football we have come to know. These outstanding people of the NFL, IFAF and the Semi-Pros directly inspired this shirt, and the standard on how to "Train like a NINJA". Premium Fitted S/S Crew neck tee. A signature style from Ninja Brand Inc. This men's super-soft fitted crew t-shirt is a comfortable and light garment. The 4.3 oz jersey tee features 100% combed cotton, discharge ink with our NBI Vintage graphic on front and Train Like a Ninja on the Back. The Feeling of Freedom. Printed in the U.S.A.