Aviator frames have a distinctive teardrop shape that requires different sizing considerations than standard rectangular frames.
For aviator sunglasses, I use 58-14-140. This is larger than my regular 52-18-140 frames. Aviators need bigger lenses to achieve the classic look and provide proper sun coverage.
Aviators often have narrower bridges - my 14mm bridge works because of the double bridge design that distributes weight differently than single bridge frames.
Classic aviator style with proper fit. The larger sizing provides the iconic look while staying comfortable and secure.