IST’s trio of aluminum-framed masks are made with marine-grade aluminum alloy outer frames, high-impact plastic sub-frames, and hypoallergenic silicone skirts. The line includes the dual-lens Panorama, the dual-lens Synthesis, and IST’s newest mask, the Syklops, which is a single lens model. These rugged diving masks offer a full range of lens styles and sizes to fit all divers. Click here for more information. Find this product at your local IST dealer.