Why not pair a navy sweatshirt with navy vertical striped chinos? Both of these pieces are totally functional and look nice paired together. Athletic shoes are an easy way to power up this look.
Navy Sweatshirt with Athletic Shoes Casual Warm Weather Outfits For Men
This combo of a navy sweatshirt and grey shorts is super easy to do and so comfortable to wear as well! Introduce a pair of athletic shoes to the mix to effortlessly kick up the style factor of your look.