Shop our big mens activewear collection at Old Navy. For the latest styles in athletic wear, find selections in the big mens sportswear collection to be just what you need. Choose from practical and durable styles such as moisture-wicking polos, fleece shorts, sweatpants, zip hoodies and logo sweatshirts in our big mens activewear collection. For function and style, you can't go wrong with our selection of big mens sportswear. Old Navy big mens activewear definitely gives you what you want in cool and comfortable designs.