Bold, versatile and ready for whatever’s ahead. With the Slack, you can take on any challenge. Lightweight and comfortable, the Slack boast a double-bridge frame that's both stylish and durable. They’re available in three different lens options, including the high-res Spectron HD, a polarized lens that increases detail, boosts contrast and enhances color, all while keeping your eyes comfy all day. The Slack also comes in Spectron 3 and Spectron 3 Polarized lenses. Plus, they're made to fit wider faces.