Exhibit your prowess in menswear styling by teaming a white long sleeve shirt and a crew-neck t-shirt for a laid-back getup. And if you need to effortlessly amp up your getup with one single item, why not complete your getup with a pair of dark brown leather casual boots? When spring is in the air, you'll love this look as your go-to for transitional weather. This combo should encourage anyone who wasn't sure about donning casual outfits as a middle-aged guy.