This off-duty pairing of a white long sleeve shirt and a crew-neck t-shirt is very easy to pull together in no time, helping you look sharp and prepared for anything without spending too much time going through your closet. Opt for a pair of dark brown leather casual boots to make the outfit slightly more refined. Loving that this look is perfect when spring sets it. When it comes to casual style for men in their 50s, this combo is ideal.