Question: what are the different styles of sunglasses?
Answer: Aviator/Pilot. Popularized by pilots, aviators have a distinct teardrop shape and metal frame. ... 
Cat Eye. This super-cute retro style plays up feline femininity with old-school charm. ... 
Oval. A staple for any collection, oval sunglasses are easy basics and fit almost any face shape. ... 
Semi-Rimless. ... 
Shield. ... 
Wayfarer.