The devil works hard, but the best navy blue suit ... the jacket’s shirt-style construction, boxy fit, and lightweight tropical wool fabric help it look just as good with jeans and loafers ...

We've curated our favorite jackets from Old Navy ... from trousers to jeans and even matching high-waisted trouser shorts ($13, originally $37) for the perfect sunny-day suit.

If you purchase an independently reviewed product or service through a link on our website, SheKnows may receive an affiliate commission. Now that summer is winding down, we’re looking forward ...