Shirt-jac

Then there are the JEANS JACKETS which are nothing more than a contemporary shirt-jac.

Source: wiktionary

That is, "Uniform and Weapon" contemplates the shirt-jac, object/icon of black men's material culture in the Caribbean, as a visual sign of the ambivalence of black Caribbean men between bourgeois English affect, which the shirt-jac's modernist material and colonial bush-jacket design cannot escape recalling, and "the revolutionary 'hard man' seriousness associated with Che Guevara and the Cuban Revolution."

Source: wiktionary

Left: Green and yellow “shirt-jac” (combined shirt and jacket), cotton blend, spread collar, chest patch pocket, center front button closure, excellent condition. $42

Source: wiktionary