Red frame and yellow lens FORCEFLEX is engineered with patented technologies to create fexible high performance eye wear, including military grade(ML-PRF-31013). EN166 Distortion free lenses, with UVA ,UVB and UVC protection a .nti fog and scratch. FORCEFLEX FF3 spectacle clear K & N Rated, FORCEFLEX FF3/JSP, Made in ENGLAND, 50pcs/crt