Undergarments are garments worn under outerwear that are often in close proximity to the skin. Boxer shorts, boxer briefs, trunks, and briefs are worn by men. Both men and women can be seen wearing T-shirts, sleeveless shirts, thongs, T-fronts, and bikini underwear. Carhartt Thermals, Winter Baselayers, Military Thermal Underwear and Longjohns