If you gravitate towards relaxed style, why not team a white polo with a white crew-neck t-shirt? And if you need to easily step up your ensemble with shoes, introduce burgundy leather boat shoes to the mix.
White Polo with White Crew-neck T-shirt Outfits For Men
If it's comfort and functionality that you're searching for in menswear, try pairing a white crew-neck t-shirt with a white polo. Beige leather low top sneakers look perfect rounding off your look.