The mask with the best quality-price ratioEvery gram of the Main Kairos Mirrored Lens mask is worth its price, which is also the most affordable on the market considering it is equipped with our Variable Lens System (VLS™). VLS™ makes the mask compatible with both standard (stock) lenses and injection-molded lenses (sold separately), using the same frame. With its wide field of vision, triple-layer foam padding, and practical tear-off functionality, this mask is a top-tier product that won't weigh on your wallet.