moisture chamber glasses Plastic frame Plastic lens non-polarized Lens width: 5.4 x 1.5 x 2.5 inches Removable air shield foam cup provides full protection against wind, dirt, pollen, and irritants Best suited for adventure sports (motorcycle, ski, fishing, etc.) and Dry Eye These sunglasses are best for m-l Faces Great moisture chamber for Dry Eye 100% UVA protection