Smith Optics Aegis Echo Tactical Protective Glasses were designed from the ground up to be used with (or without) over-the ear hearing protection and communications gear to ensure all-day comfort. Additionally, the PivLock Lens Interchange System lets the user adjust to various ambient light levels quickly and easily. The tough, thin alloy temple arms can be formed to exactly the right contour without breaking, and fit under protective gear without undermining the seal.
Other key features include anti-scratch and anti-fog coatings, Ballistic impact protection, Tapered Lens Technology that corrects distortion and much more. Made in the USA. Lifetime warranty. Tan 499 frame. Kit includes clear lens, gray lens, storage case, retaining strap, and no-fog cleaning cloth. Standard size frame and lenses.