Solid proof that a crew-neck sweater and light blue chinos look amazing when worn together in a laid-back getup. Hesitant about how to finish off your look? Wear a pair of black leather chelsea boots to dial up the fashion factor. This one is a viable option if you're figuring out a killer look for summer-to-fall weather. Wondering how to master classic and casual outfits in your early 20s? This combination is a perfect example.