21. The Sweater Jacket — As you ease into the warmer months, the sweater jacket is not only a very chic alternative to a more structured jacket, but also it just feels really good to wear. Just make sure you find one with a bit of tailoring so it complements your figure without completely hiding it. 

ASOS White Ribbed Knit Jacket, $42.97, available at ASOS; Rag & Bone Hart Biker Jacket, $595, available at Rag & Bone.