Washington Football Team running back J.D. McKissic is showin' some California love on his newest pair of cleats ... by honoring Tupac and Nipsey Hussle with an awesome design.
TMZ Sports has learned ... that the 27-year-old NFLer wanted to pay tribute to the two rap legends on his Nike kicks ... so he hit up California artist Joe Castro to make it happen.
Castro -- who also did J.D.'s teammate Chase Young's cleats -- came though with an incredibly detailed finished product .