Gauchos - they're not just for cowboys anymore. At least they weren't for the fashion craziness of the late 70s. They hit the Bog Book catalogs big time in 1977 and then quickly faded away (perhaps they weren't suitable for the discotheques?)
Gauchos are near and dear to me because they came on the scene when I was a young lad. Naturally all I could think was "What happened to the minis and hot pants?"