The Porgy Backstage is great for those with smaller faces and petite features.
 
All Caddis frames have proprietary blue-light blocking technology in a nearly clear lens, which is tough to do. The technology is infused in the lens and is not a coating that can be scratched or worn off, and blocks 45% of harmful high energy visible blue light (LED, Phone/TV Screens), at and surrounding the most harmful wavelength (455nm). 
 
An anti-reflective coating helps reduce reflections and glare, and hydro-phobic and oleo-phobic coatings are anti-smudge.