Shop large cap wigs, women's and men's large head size styles by the top name wig brands. Perimeter measurement is approximately 22 to 23 inches diameter. Our selection of top name brands in larger caps allow fashionable looks. Whether daily wear, or as a medical wig, keep things fresh, updated and you. When an average cap size simply won't do, shop a large cap wig in hair lengths, textures and fibers that look fabulously real.