It's the outfit equation behind countless street style looks from fashion icons, from Elsa Hosk to Kendall Jenner. For the Cool Girls, the formula is all about the perfect balance of relaxed and refined: lightweight tailoring with relaxed denim and slouchy leather. The result is a look that's never trying too hard. Explore outfit ideas from your favorite it girls and shop their style.

The secret to an elevated travel wardrobe is about understanding wardrobe formulas. Fashion editors and stylists have been using capsule methods for years to build looks that feel polished without overpacking. Our minimalist packing guide for summer travel shows you how to build a resort capsule wardrobe with luxury resort wear so you can jet off with a case that actually closes.