IT'S A CINCH.

1. zara black corset, $25, zara.com
2. isabel marant erika wrapped cotton waist belt, $281, matchesfashion.com
3. loewe obi leather belt, $718, matchesfashion.com
4. alexander mcqueen leather waist belt, $945, net-a-porter.com
5. cecilie copenhagen wrap belt, $71, matchesfashion.com