Why not pair a black crew-neck t-shirt with navy chinos? Both of these items are super practical and look amazing when married together. You can get a bit experimental with footwear and play down your look by slipping into a pair of white and red athletic shoes. As you can imagine, this is a neat idea come warmer weather. This combination is a big inspiration to anyone who wasn't sure about donning casual outfits as a guy in his 40s.