Young Red Haired Girl Undresses Her White Sleeveless Shirt On The Scarf Outside In The Nature

In addition to athletic usage, A-shirts have traditionally been used as undershirts, especially with suits and dress shirts. They are sometimes worn alone without a dress shirt or top shirt during very warm and or humid weather; mainly in North America where the climate is warmer and more humid in the Summer. A-shirts may be worn alone under very casual settings, as lounge wear, and or while completing yardwork or other chores around the home.
The build of an A-shirt is simple: the neck and armholes are often reinforced for durability. One usually has large armholes and neck holes and a neckline that can reach down as far as mid-chest. They are also sometimes made long to make tucking into a pair of pants easier. In almost all cases, they are buttonless, collarless, and pocketless. An A-shirt is designed for a tight fit and made of ribbed cotton or other fiber.
The string vest has fallen from favour in the United Kingdom, but a string semmit as an underclass fashion item was made famous by Rab C. Nesbitt, leading character in the TV sitcom of the same name.