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Start the day off right with comfortable and supportive boys' underwear for your little man

No matter what's on the calendar, your son will look and feel great with comfortable boys' underwear beneath his everyday clothing. Build a collection of boxers, briefs, boys' undershirts and more to prepare him for any activity. From traditional white tees to briefs and boxers featuring cool patterns, Kmart carries boys' underwear in designs that are sure to make him happy. Stock up quickly after an unexpected growth spurt with convenient multi-packs or pick out individual pieces for added versatility.

If your son wears a boys' school uniform to class, he'll be more excited to get dressed in the morning with some fun underwear styles to choose from. Encourage a little flair with designs featuring his favorite characters from movies, cartoons and comics. Add more variety with boxers and boxer-briefs in cool prints and colors. Whether it's warm or cold, make sure he also has a comfy boys' undershirt on underneath his polo. Choose from lightweight designs to wick away sweat or thermal options to keep him warm.

Complete boys' suits with the right underclothing for the occasion. For special events, dress your son in classic white briefs and short sleeve undershirts. When layered under button-down shirts and a blazer, boys' thermal undershirts provide extra insulation during the colder months. In warmer weather, try a rib-knit A-shirt or a cool tank instead. Get ready for both casual and formal activities with boys' underwear from Kmart.