Here in the North, we think of gaucho pants as wide, cropped trousers. Not so: Real bombachas
are long and slouchy, with a buttoned cuff at the ankle to prevent pants from riding up. This cotton pair looks surprisingly sultry with a satin silk blouse, draped to expose the back, and a debonair fedora (pants and blouse, Ralph Lauren Collection, $798 and $1,298; fedora, Patricia Underwood for Ralph Lauren Collection). To wear the woven sash (a local find; you could also use a long printed scarf), wrap it around your waist a few times, then tuck in the ends—the pattern makes neutrals come alive. Boots, Guess Beauty Bonus:
You don't need to fuss over your makeup with these back-at-the-ranch looks. Fake a bare, sun-kissed complexion with powder bronzer (like Elizabeth Arden Pure Finish Mineral Bronzing Powder, $32). Use a short, fluffy brush to apply it everywhere the sun would hit: cheekbones, the bridge of your nose, chin, and forehead. Low-cut blouse? Dust a little over your neck and chest too. See more of O's favorite makeup.