The 125 Double Lens mask is a low-volume, low profile mask provides excellent range of vision. The split lenses allow the frame to sit low on the face and are available with optical lenses in -1.0 to -8.0 diopters (including half diopters) or with ground in gauge readers (bifocal lenses). The soft, premium-quality silicone skirt fits securely on the face offering an excellent seal and comfort. A high-impact plastic frame and tempered lenses means a durable mask that will last for years to come. Fits most standard-size to wider faces and comes standard in a protective storage box.