A T-shirt (or t shirt, or tee) is a style of unisex fabric shirt named after the T shape of its body and sleeves. It normally has short sleeves and a round neckline, known as a crew neck, which lacks a collar. T-shirts are generally made of a light, inexpensive fabric and are easy to clean. Quality short-sleeve crew-neck t-shirts, 100% pre-shrunk cotton (cotton/polyester blend for gray colors), heavy weight fabric for comfortable feel. Double-stitched seams at shoulder, sleeve, collar and waist.