Before you head to the beach or pool in boring big mens swimwear, shop Old Navy big mens board shorts for classic styles that you'll love. Many colors, graphics and patterns are available in our collection of big mens swim trunks featuring quick drying material that is super comfy. Our loose fitting big mens swimwear and big mens board shorts feature mesh lining and are so attractive, you can throw on a tee and wear Old Navy big mens swim trunks as shorts. Old Navy big mens swimwear including big mens board shorts continue to combine style and function for a day in the sun with comfort and protection in the water.