Breathable and flexible material collection because comfort is the biggest factor people look for during undergarment shopping. U.S. Polo Assn. is an American clothing and fashion apparel brand that manufactures t-shirts, shirts, dresses, beachwear, handbags, and much more for women, kids, and men. Select the right color of Underwear for your personality. We have Underwear available in Multicolor and Black. Our fashion experts have curated U.S. Polo Assn. Underwear for Men in variety of fabric type like Cotton and Blend. Shop easier with our multiple store options.