Grab your sis, hold her tight, and maybe even take her out to brunch — National Sisters Day is Aug. 5! We're celebrating the sweet holiday by paying homage to some of our favorite style-setting sisters. Nothing can compare to the unbreakable bond of having one, and whether they're models, actresses, designers, or even royalty, we're willing to bet that these famous family members don't let anything come between them — especially style. Click through now to see 15 sets of our favorite fashionable sisters — and Happy Sisters Day!
