3M2800 Comfort Clear Over Spectacles - Comfortable and Versatile. Featuring an inclinable lens and thin adjustable temples, the 3M 2800 Over-Spectacles are designed to fit over most prescription spectacles with minimal interference. Very lightweight for the category (38g), they are available in 3 lens options, including shade 5 for gas welding.Key features:- Strong polycarbonate lens with anti-scratch coating for durability.- Adjustable length temples (4 positions) for wearer comfort and optimal fit- Inclinable lens for easy adjustment and maximum comfort- Versatile design for use with a wide variety of prescription spectacles- Soft low profile temples for comfort and minimum interaction with prescription spectacles- Lens options available: - Clear (3M 2800)- Yellow (3M 2802)- IR shade 5 (3M 2805)