thumb|A woman wearing a V-neck T-shirt thumb|T-shirt day in Leipzig, [[Germany]]
A T-shirt is a casual, short-sleeved shirt with a simple design, typically made of cotton or similar fabric. It matters because it has become one of the most common and practical everyday clothing items worn by people around the world.
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thumb|A woman wearing a V-neck T-shirt thumb|T-shirt day in Leipzig, [[Germany]]
A T-shirt (also spelled tee shirt, or tee for short) is a style of fabric shirt named after the T shape of its body and sleeves. Traditionally, it has short sleeves and a round neckline, known as a crew neck, which lacks a collar. T-shirts are generally made of stretchy, light, and inexpensive fabric and are easy to clean. The T-shirt evolved from undergarments used in the 19th century and, in the mid-20th century, transitioned from undergarments to general-use casual clothing.
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