This combination of a tan crew-neck sweater and black jeans is a safe and very fashionable bet. Avoid looking too polished by finishing off with a pair of white canvas high top sneakers. Keep this combination in your front hall closet come warmer days, and we promise you'll save time getting ready on more than one occasion. Gents wondering how to pull off modern casual outfits as you move through your 20s, this combination should answer your question.