A suit and a navy crew-neck t-shirt matched together are a match made in heaven for those who appreciate sophisticated styles. Black and white high top sneakers will bring a carefree touch to an otherwise all-too-safe getup. This look isn't a hard one to achieve and it's summer-friendly, which is important when it's super hot outside. You can take inspiration from combinations like this if you're over 30 and you want to take a more serious direction in your style.