Aviator sunglasses are a style of sunglasses that have a distinctive teardrop-shaped frame and thick, curved temples. They were originally designed for pilots in the early 20th century to protect their eyes from glare while flying at high altitudes. The shape of these glasses provides a wide field of vision and reduces peripheral distractions. Over time, aviator sunglasses have become popular among both men and women as a fashion accessory due to their classic design and versatility in complementing various outfits.