Square Polarized Sunglass Flip-up

These flip-up sunglasses are made for people who wear prescription glasses and want an easy way to block glare and sunlight. They hook onto your glasses and flip up without removing them from your frame, making them easy to use indoors and outdoors. Features:  Polarized lenses help reduce glare. Flip-up design for quick up-and-down use. Hooks onto your glasses and stays in place. Square shape fits many classic and vintage-style frames. Lightweight and comfortable for everyday wear. Good For:  Driving, walking, daily outdoor use, and prescription glasses wearers. Important:  Please measure your glasses before ordering.  Measure one lens on your glasses. Choose the same shape and size, or the next size up.  Available Sizes Small SizeOne Lens 59mm Width x 47mm Height Total Width 133mm x 47mm Height Medium SizeOne Lens 60mm Width x 52mm Height Total Width 135mm x 52mm Height Large SizeOne Lens 61mm Width x 52mm Height Total Width 137mm x 52mm Height Extra Large SizeOne Lens 64mm Width x