For a tested smart option, you can always rely on this combo of a white suit and a white polo. On the shoe front, go for something on the classier end of the spectrum and complete your outfit with a pair of dark brown leather loafers.
White Polo with White Suit Smart Casual Warm Weather Outfits
This combination of a white suit and a white polo looks well-executed and instantly makes any guy look dapper. White leather low top sneakers will give a more relaxed finish to an otherwise standard outfit.