It can be hard to pull off a lot of layering on a warm day, but this blazer is thin. It feels more like you're wearing a chambray knit than a heavy lined blazer, so I actually recommend trying it when it's warm if you want to layer. Here I tried it with an otherwise simple black dress. The blazer looked great over the dress, but I added to the belt to see how it would respond, and I was into it. I finished with a pair of Old Navy neutral-toned mules.
Image Source: POPSUGAR Photography / Rebecca Brown