Consider pairing a white horizontal striped crew-neck t-shirt with a navy suit and you'll be the picture of manly sophistication. And if you want to easily dress down this ensemble with a pair of shoes, why not complement this look with a pair of white canvas low top sneakers? This look is a tested option if you're on the hunt for a great, season-appropriate look. A wonderful example for 20-year-old gentlemen on a mission to adjust their look towards maturity.