Sandy, The Fits over your glasses glasses. 

Whether its an overcast day, or you wear prescription glasses and need some protection from the sun, These Fit over glasses are the way to go. 

Features

• Yellow Lenses
• Polycarbonate
• Fits Over Glasses
• Night Driver

Fits Glasses Up To

Wide: 140mm

Tall: 40mm

Measurements

Frame Width: 5.984in / 152mm
Frame Height: 1.535in / 39mm
Temple Length: 6.26in / 159mm
Bridge Width: 0.8661in / 22mm
Weight: 0.9oz / 25.5grams