Helmet Chin Strap Over or Under Sunglasses for Biking?

We have our own preference based on what works for us, but every face is different, and not all sunglasses and helmets are created alike. Sound off!

Is there a right way to layer sunglasses and bike helmet straps? We have our own preference based on what works for us, but every face is different, and not all mountain bike sunglasses and helmets are created alike. Sound off!