T-shirts are comfortable, casual tops made from soft, breathable fabrics like cotton or blends. They typically feature a round neckline and short sleeves, offering a relaxed and easy fit. T-shirts come in a wide variety of styles, from basic solids to graphic prints, and are a versatile wardrobe staple for everyday wear. They are perfect for layering or wearing on their own, providing both comfort and style for casual outings, lounging, or even light exercise.