Punasi 4-pack Polarized Clip-on Sunglasses: available at Amazon Featuring four different colored lenses, each with their own unique benefits, these clip-ons let you seamlessly adapt to any situation.

5 Pairs Polarized Clip-on Sunglasses for Men Women Rimless Sunglasses Clip On Rectangular Unisex Flip Up Anti-glare Fishing Driving Over Prescription Glasses (Various Color, 2.36 x 1.57 Inch) Frienda ...

Polarized and UV400 Sunglasses - The 4 additional clip on lenses are polarized and UV400 protection,can filter out sunlight reflected glare,protecting your eyes from long-term damage by blocking ...

Clip-on lenses were invented in Massachusetts during the 1930s as a practical piece to reduce glare. Polaroid added an extra filter to regular glass lenses to ensure visibility in any weather.

Clip-on sunglasses are significantly cheaper than prescription sunglasses. Many clip-on sunglasses flip up when you don’t need them, so you don’t have to carry two sets of glasses with you.