Make a white crew-neck t-shirt and navy cargo pants your outfit choice for an easy-to-create ensemble. Complement this getup with white athletic shoes to give a touch of stylish casualness to this look. So as you can see, it's an on-trend, not to mention spring-ready, combination to have in your transitional rotation. If you're not sure how to dress age-appropriately without giving up on fashion, this combo is a wonderful example.