If you don't like being too serious with your looks, rock a white crew-neck t-shirt with olive chinos. Throw in a pair of black leather low top sneakers and the whole getup will come together brilliantly. Come extremely hot sunny days you're looking for a look to keep you fresh and seriously stylish –– this look is just what you need. This getup should inspire anyone who had doubts about sporting casual outfits as an over-40 gentleman.