There's no need to be short-sighted! Build a customised prescription goggle with the Mariner Pro Optical Lens. Featuring a symmetric design, this single lens is usable for left or right eyes and can be built in just 15 seconds with the Mariner Pro Optical Kit - available to purchase separately. Available in dioptres ranging from 0 to -8.0, the Mariner Pro Optical Lens meets your individual needs so you can focus on enjoying the water. With a super-soft seal, anti-fog coating and total UV400 protection, see under the water with comfort, clarity and confidence. Please note that this is a single lens. Lenses cannot be used with the Pulse Optical Kit.