RHT hold ups, or reinforced heel and toe, are one of the very best kinds of hosiery you'll ever wear. The method of folding the sole of the hold ups and doubling the material strengthens the legwear where it's under the most stress. It also creates the iconic dark foot area that's become such a standard of fashion and sexy legwear. RHT hold ups are some of the most beautiful and yet the most robust fashion pieces in the world. A truly stylish classic.