3M™ FAHRENHEIT™ (71360-00011M) has a soft and transparent PVC frame with a wide support around the entire lens for increased comfort. The side of the spectacle-mask rim has special grooves to accommodate the feet of the vision correcting spectacles. This model is specially designed to be worn with corrective eyewear, respirator and half mask. The aerodynamic shape with cylindrical lenses ensures a 180º field of vision and an undistorted image. Indirect ventilation system protects against moderate falling particles, dew, liquids and dust. The lenses of the spectacles are made of polycarbonate (for mechanical work). The wide elastic nylon strap (25 mm) is easy to adjust thanks to a buckle and a mechanism for attaching the strap to the frame. The glasses are enclosed in a microfibre bag which protects the glasses and can be used to wipe the lenses when necessary.