The theory of less is more especially during high temperatures may be true. However, summer layers is still possible without sweating bullets...kinda.

My lil trick for preventing potential pit stains (hey it happens) is to simply cover them up just in case. I do this by layering a piece over my top. In this particular look I threw on an uber versatile sleeveless trench from Boohoo over this high neck midi dress for a more refined look.

Dress: Target (similar here and here) // Sleeveless Tench: Boohoo  (sold out: more options) // Booties: ShoeDazzle

If kept to a minimum summer layers is something you can definitely pull off. The style trick comes in handy for those days when you just want to hide body parts you're uncomfortable with.