WILEY X Vapor Comm 2.5 Bridge Twist Lock Rx Carrier

The prescription insert only fits the WX VAPOR 2.5, WX VAPOR COMM 2.5 and SPEAR. However, for the SPEAR you will also need prescription post for the prescription insert, as it cannot be mounted without one. You can also purchase the prescription insert and post together. Features: Bridge Width: - The bridge width is the measurement between your two lenes, meaning the space where the frame fit against your nose. It is important that the bridge of your eyewear fits the width of your nose. If the bridge width is too wide, the eyewear will slide down your nose. If the bridge width is too narrow, the eyewear will pressure to much against your nose, causing pressure points that can be uncomfortable. Lens Width: - The lens width, also called eye size, refers to the horizontal width of one of your lenses from the one side to the other, without including any of the frame. As the lenses define your field of sight, this is the most important measurement to ensure that the frame fits your eyes and face. The lenses are optimal, if they are as wide as your face and do not rest on your cheeks. Specifications: - Bridge Width: 24 mm - Lens Width: 42 mm