Nose pads are adjustable so that the frame rests in the optimum position, and softer silicone materials are often used for additional comfort. Some shooting glasses feature bridges that adjust to one of several locking positions so that the glasses are positioned just right for any shot. The frames are constructed of any number of ophthalmic materials, including titanium and other metals, plastic, or tough polycarbonate . Many nonprescription shooting glasses come with several pairs of interchangeable lenses for use under different lighting and atmospheric conditions. Prescription lenses can be made to order in whatever color the wearer deems most appropriate.
Many shooters are comfortable in lenses that are yellow or orange.
Lenses in these hues block haze and blue light and enhance the orange color of the target. The brighter yellow the lens color is, the better it is for use at night. Alternatively, a light purple color, which is actually a combination of a neutral gray and a vermilion, is good for enhancing the orange of the target against a background of tall trees. Vermilion itself is useful to highlight conditions where there is poor background, such as trees, and to enhance the target against the background. Gray shooting lenses do not enhance the target, but they are good in bright sunlight.