This combo of a white and blue blazer and jeans is a must-try smart casual outfit for any modern gentleman. Play down the casualness of your getup by sporting a pair of dark brown suede tassel loafers. Come super hot sunny days you're looking for a look to keep you cool and seriously stylish –– this outfit is just the right one. So if you're looking for style inspo for dressing as you head into your 30s, this ensemble is definitely worth saving for later.