*Light-filtering technology protects from glares *Designed to be worn solo or over existing eyewear *Comes with a flip-up design for optimal use Flip-Up Tac Glasses are the newest in Bell and Howell Tactical eyewear with all the benefits of the original Tac Glasses, Light-Filtering technology. But with the ease to flip up, so you can read everywhere. Flip-Up Tac Glasses can be worn by themselves or over regular glasses. And when you Flip them down, they snap right back into place. *Fits over existing eyewear *Flip out of the way and snap right back into place *Amazing light-filtering technology *Lets you see clearly without any glare Enhances colors *generic case will be included if available Thanks for looking 😊