This Premium full view eyeglasses offers reliable protection even under difficult operating conditions The ergonomic Design & soft materials provide for high comfort & thus for a high wearing acceptance. Gastight without VENT SLOT. Clear Acetat-glass. Excellent chemical resistance. Closed ribbs. Protection from gases & fine dust. UV-Protection. Light fitting head b&. Adjustable joint For best fitting. Technical data: Standards EN 166. Windscreen tinting Colourless. Material Acetate. Bezel colour Transparent.