If you don't take your style lightly, go for classic style in a grey plaid waistcoat and navy jeans. And if you need to easily up this getup with a pair of shoes, why not complement your ensemble with a pair of dark brown leather loafers?
Grey Plaid Waistcoat with Navy Jeans Outfits
For a casually stylish ensemble, make a grey plaid waistcoat and navy jeans your outfit choice — these pieces work nicely together. Clueless about how to complement this getup? Wear a pair of brown leather derby shoes to dial it up.