This laid-back pairing of a denim gilet and beige jeans is a winning option when you need to look sharp but have no extra time to dress up. And if you want to effortlessly perk up your ensemble with a pair of shoes, why not add dark brown suede oxford shoes to the mix? This outfit is a never-failing option if you're looking for a great, summer-appropriate outfit. So if you're looking for style ideas on what to wear as you step into your 30s, this combo is perfect.