What's My Size?

Measure the full WIDTH of your glasses at the widest points, and the HEIGHT of your glasses from top to bottom.  If you need additional assistance, please visit our SIZE FINDER page for helpful tips on how to properly measure your glasses.

If your measurements are in inches, please use our conversion chart to find the equivalent measurement in millimeters.  The size finder entries must be in millimeters in order for it to work properly.

Not sure if you measured your glasses correctly?  Please call customer service at (800) 834-2563 for assistance.

Width (mm):

Height (mm):

Cocoons Twilight Night Driving Fitovers

The Twilight lens system blocks 100% of harmful UV light and 60% or more of harmful High Energy Visible (HEV) blue light while providing 93% overall visible light transmission. The unique filtering properties of these HEV filters effectively reduce scattered blue light and improve contrast without compromising overall light transmission. The lens system is protected by a one-year scratch resistance warranty and includes an anti-reflective coating to minimize glare and halos created by artificial light sources. The patented frames feature Flex2Fit adjustable temples and a unique Soft Touch finish to enhance comfort during extended wear. The adjustable system enables the wearer to manually contour the temples for a personalized fit that is extremely secure with a minimal amount of pressure. All Cocoons fitovers feature a limited lifetime warranty and include a custom designed case and lens cloth.

Choose from eight different frame sizes designed to fit snugly, but comfortably over nearly any style of prescription glasses. Not sure what size will accurately fit over your glasses? Use our Size Finder to identify the Cocoons fitover size that's right for you.  Need a conversion chart for inches to millimeters? Click here

Frame Technology Lens Specifications

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