Our Puerto Rico 2' x 3' Flags are made to official design specifications and are printed single side. Indoor or outdoor use Flag has strong canvas header and two solid brass grommets Territory flag artwork is printed on 200 denier bright UV resistant nylon Four rows of lock-stitching on the fly end of the flag Great flyability, even in a slight breeze Made in the USA! The origins of the current flag of Puerto Rico, adopted by the Commonwealth of Puerto Rico in 1952, can be traced to 1868, when the first Puerto Rican flag, "The Revolutionary Flag of Lares", was conceived by Dr. Ramón Emeterio Betances and embroidered by Mariana "Brazos de Oro" Bracetti. This flag was used in the short lived Puerto Rican revolt against Spanish rule in the island, known as "El Grito de Lares".