This modern casual pairing of a yellow plaid flannel long sleeve shirt and black ripped skinny jeans is extremely easy to throw together without a second thought, helping you look seriously stylish and prepared for anything without spending a ton of time digging through your wardrobe. For a truly modern mix, complement this outfit with a pair of white low top sneakers. Now that's an outfit that's guaranteed to make you stand out among other 20-something fellas.