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Men's undershirts are designed as a base layer beneath dress shirts, polos, and sweaters. They typically have lightweight fabric, minimal detailing, and a longer cut for tucking in. Regular T-shirts are generally designed to be worn on their own and may feature heavier fabrics, graphics, or decorative details.
Common styles include crew necks, V-necks, and tanks. Crew necks have a rounded neckline, V-necks feature a pointed opening, and tanks have a sleeveless design with a scoop neckline.
Common undershirt fabrics include cotton, cotton-polyester blends, modal, and blends containing stretch fibers such as elastane. Cotton has a familiar knit texture, while modal typically has a smooth, soft feel. The fabric composition varies by garment.
A crew-neck undershirt creates a visible layered look when the top buttons are open. A V-neck offers a lower neckline for an open-collar outfit. For casual styling, a plain crew neck can also serve as the base beneath an unbuttoned overshirt.
Follow the garment's care label, since washing and drying instructions vary by fabric. Separate light and dark colors, use the recommended wash cycle, and follow any temperature or bleach restrictions. Fold undershirts neatly once they are dry.