This casual pairing of a crew-neck sweater and navy jeans is super easy to throw together without a second thought, helping you look awesome and prepared for anything without spending a ton of time digging through your closet. Avoid looking too casual by finishing with a pair of brogue boots. With the departure of snow come warmer afternoons and balmy nights and the need for a breezy look just like this one. Wondering what you should wear as you go through your 20s? This combination is a great illustration.