Glacier travel. High elevation summits. Spring snowfields. Eye protection in the alpine is serious business. Whether you're skiing or mountaineering, the Smith Embark glacier glasses hold up to harsh, ever-changing conditions while providing a contrast-boosting view of every crevasse, wind drift and terrain feature. ChromaPop delivers color and contrast-boosting performance throughout the full range of the lens, so you always have the best possible view. Removable and ventilated side shields add peripheral light coverage, and low-profile, adjustable temple arms let you customize the fit. A goggle-inspired retainer strap adds the security to keep them in place through technical ascents and high-speed descents. Vision. Available in your choice of ChromaPop Glacier Photochromic Copper Blue Mirror or ChromaPop Polarized lenses. ChromaPop Glacier Photochromic lens tint adapts to match the light conditions with less sensitivity to temperature changes and full ChromaPop contrast and color enhancement throughout the tint range. Anti-fog and hydroleophobic coatings on the Glacier Photochromic lenses for clear optics and easy cleaning. Fit/Integration. AutoLock hinges hold frames open for easy one-hand on and off. 6-base lens curvature offers a modest wraparound fit. Megol temple and nose pads provide non-slip grip so glasses stay put. Frame. Evolve bio-based frame material is lightweight and durable.