This casual combination of a crew-neck sweater and a black long sleeve shirt is very easy to pull together without a second thought, helping you look amazing and prepared for anything without spending too much time searching through your wardrobe. For a more laid-back finish, why not complement your ensemble with black canvas low top sneakers? This look is the definition of perfect for those warmer springtime days. This combination illustrates that in your 30s your dressing options are looking good.