With a huge collection of men's underwear, Topofstyle is your one-stop solution to find a comfy undergarment. Calvin Klein Inc. is an American fashion brand that was set up in 1968. It was established by the popular fashion designer Calvin Klien. Lifestyle and home accessories, watches, fragrances, and more. Brown conveys warmth, simplicity, comfort, and elegance. Our fashion experts have curated Calvin Klein Brown Underwear for men in variety of fabric type like Polyester, Cotton and Modal. Shop easier with our multiple store options.