CROAKIES FLOATATION FACTOR
The Croakies Floatation Factor (CFF), helps to easily determine the amount of floatation you will need to keep your glasses from sinking. The Croakies Float Collection comes in a variety of styles and beacon colors so you can see your glasses floating on the water.

CFF +1
Floats Plastic Frame/Plastic Lens eyewear
CFF +2
Floats either, Plastic Frame / Glass Lens or Metal Frame / Plastic Lens eyewear
CFF +3
Floats up to Metal Frame / Glass lens eyewear