Springing forth from a focus on function, fashion and sustainability, Calistoga is the latest addition to Zeal’s See Grass Collection. Its fashion-forward, medium-fit frame features a keyhole bridge and is manufactured from recycled plastic and agricultural grasses using renewable energy. This eco-focused frame pairs perfectly with Zeal’s plant-based Ellume Polarized lenses, which further reduce its footprint and add exceptional highlights of color, clarity and contrast through its round lenses. In addition to being lightweight and durable, See Grass frames are also incredibly versatile. Calistoga features our proprietary ProFlex material in the bridge and temple tips to keep them in place, whatever adventure comes your way.