This laid-back combination of a field jacket and beige shorts is perfect if you need to go about your day with confidence in your look. Rounding off with a pair of tassel loafers is the simplest way to inject a sense of polish into this look. Undoubtedly, you're looking at a wonderful option for a super hot summertime day. Think it's hard for 20-year-old gentlemen to nail smart casual dressing? This combination is irrefutable proof of otherwise.