What Are Ladies Bikini Briefs and How Do They Differ From Other Underwear? What Are Ladies Bikini Briefs and Why Are They So Popular? Ladies bikini briefs are one of the most popular underwear styles for women because they strike the perfect balance between comfort, coverage, and style. They sit comfortably on the hips, offer moderate rear coverage, and feature a leg opening that flatters most body shapes. Unlike high-waist…