The RX-X25 comes with permanent side shields as an added safety feature. It is a stylish and lightweight frame, designed with comfort in mind. These glasses also feature a brow guard, and a rubberized temple bar for secure grip. The frames typically fit medium to large heads, and are available in two colors – Matte Black and Tortoise shell. For Double Segment Height Bifocal glasses only! If you wish to purchase standard prescription safety glasses in this model, please click here. ANSI Z87.1-2003 APPROVED.