Popsugar Fashion Fashion Shopping How Often Should You Buy New Underwear? We Asked Experts How Often Should You Actually Buy New Underwear? 7 May 2021 by Natasha Marsh View On One Page Photo 9 of 18 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 Knix Essential Thong Knix Essential Thong ($18) Knix Essential Thong $18 from knix.com Buy Now Previous Next Start Slideshow Fashion ShoppingSpring CleaningStyle How-ToUnderwear