This semi-casual pairing of a green polo neck sweater and blue jeans is very easy to pull together without a second thought, helping you look sharp and prepared for anything without spending a ton of time rummaging through your wardrobe. To give your overall ensemble a more relaxed spin, why not introduce pink canvas low top sneakers to the mix? It often pays to branch out of your style comfort zone as a 20-something and take a step in a classier direction.