TR90 Polymer Memory Material: TR90 frames can easily bend at any angle. They areflexible, durable and toughenough to absorb hard impacts.
High Impact Resistant Lens:Our PC lenses are 10x more impact-resistantthan other lenses. They also offer 100% protection from the sun's harmful UV rays.
5 Easily Interchangeable Lenses: Different environments require different lenses. Our 5 lens approach gives you the glasses you need when you need it and they're shatter proof.
2 ways to wear:Guardian glasses can be worn traditionally or with the arm replacing Croakie style headband for when you are involved in outdoor activities.
Myopia Glasses Frame Included:Insert for nearsightedness; easily fits behind the lenses.
Built For Comfort:Both the TR90 frames and PC lenses offer an ultra lightweight experience. The flexibility of the frame allows the glasses to conform to your face.