Military Uniform of the fictional nation of L'Manberg from Dream SMP.
The uniform features an open Blue Coat over a white shirt, with golden Epaulettes and a brown Shoulder Belt, White Pants, and black Boots. A red Sash is fastened around the waist and a Black Hat is worn on the head.
The uniform is generally the same for all characters it is worn by, though Fundy (Youtuber) wears a variant with brighter, pastel colors. Nihachu's uniform also has lighter colors, and a blue sash instead of red.