For a classic and casual outfit, pair a waistcoat with navy cargo pants — these items work pretty good together. To give this outfit a more relaxed vibe, why not complete your look with white athletic shoes?
White Athletic Shoes with Waistcoat Warm Weather Outfits
A waistcoat looks especially refined when combined with grey chinos for a look worthy of a real dandy. Add a pair of white athletic shoes to give a touch of stylish casualness to your ensemble.