ASTM-rated: rated L1 & L3 according to the newest consensus standard ASTM F2100-23; Integrated fog-free foam strip: minimizes lens fogging to support optimal visibility with eyewear; Wide, annealed aluminum nosepiece: conforms precisely to facial contours for a custom, comfortable fit that stays in place; Optimized three-layer construction: engineered to deliver high protection without sacrificing breathability or comfort; Soft mask and spandex-polyester ear loops: engineered for comfort and flexibility during extended wear; Omega pleated design: lifts mask off the face for easier breathing and a cooler, collapse-free fit; Ultrasonically welded seams: deliver strong, yet soft, seams that wonÆt loosen or irritate during extended wear