This is a Howard Leight Glasses known as the Vapor II, model R-01537.
Vapor II Safety Eyewear features an optical grade" 9-base wraparound lens that provides 180 degree field of vision. An ideal addition for most indoor or outdoor shooting environments" this selection of Safety Eyewear includes Anti-Fog lenses that minimize fogging.
Features:
Fog-Ban Anti-Fog Coating
9-Base Wraparound Polycarbonate Lens
One Size Fits Most