Milwaukee 49-17-2350 MK2350 Gray Anti-Fog Safety Glasses Lightweight, resilient polycarbonate frame with a soft elastomer internal frame provides a superior level of comfort Ultra soft flexible fingers selectively adjust and conform to fit and hug each wearers nose Soft elastomer browguard and overmolded temples cushion every point of contact Three position ratchet lens inclination system and adjustable temples enable the wearer to custom fit the eyewear to facial profile Unique ventilation channel between the frame and the lens for improved moisture/fog control