This combination of a sweater vest and navy chinos looks considered and immediately makes you look cool. A pair of slip-on sneakers will easily dress down a dressy outfit.
Slip-on Sneakers with Sweater Vest Warm Weather Outfits For Men
This getup with a sweater vest and white jeans isn't a hard one to pull off and easy to change. Bring a more casual twist to an otherwise standard ensemble by rounding off with a pair of slip-on sneakers.