Ex Marine turned green side Navy Corpsman !! Pretty common in the fleet but most corpsman choose not opt out to this option because they have to stay in the more stricter Marine corps Marine Corps Green Dress Uniform Sinatra Marine Corps & Honor Guard Dress Coat Uniform Warehouse: Security Uniforms, Police Uniforms, & Tactical Gear Britains Soldiers 13049 U.S. Marine NCO Dress Uniform, 1833 Green Usmc Wool Service Sweater Gem