Why not opt for a black shirt jacket and black jeans? Both pieces are super practical and look great when combined together. A pair of blue canvas low top sneakers will give a mellow vibe to this look. Keep this ensemble ready to go when spring sets it, and rest assured, you'll save a ton of time brainstorming for an outfit on more than one occasion. Wondering how to master casual outfits as you make your way through your 20s? This combination is the perfect answer.