Details

three equal vertical bands of green (hoist side), white, and red; design inspired by the French flag brought to Italy by Napoleon in 1797; colors are those of Milan (red and white) combined with the green uniform color of the Milanese civic guard

note: similar to the flag of Mexico, which is longer, uses darker shades of green and red, and has its coat of arms centered on the white band; Ireland, which is longer and is green (hoist side), white, and orange; also similar to the flag of the Cote d'Ivoire, which has the colors reversed - orange (hoist side), white, and green