Uniforms of the United States Marine Corps Wikipedia I see Marines both wear blue and white pants for full dress uniforms. In which case they use which? : r uniformporn WWI USMC MARINE WINTER DRESS TUNIC UNIFORM INDIEN PATCH #45233462 These personnel from Company H, 2nd Headquarter Battalion, wear the various regulation uniforms. From left to right, the winter service uniform worn by an M.P., the summer dress uniform, the winter service