Bartontakes its name from our favorite local swimming hole, Barton Springs, where ROKA was born. This versatile, modern square frame has classic aesthetics that can go anywhere, and it's packed with technology that makes it equally suited for a long trail run, mountain bike ride, or a lazy summer afternoon by the water. This new and improved 2nd generation version features advanced GEKO™ grips for a secure, non-slip fit, and custom-fabricated spring hinges that provide a bespoke fit for each person's face. It's as essential as it is durable and will stand up to any challenge.