Serious Alpine Eye Protection: 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 Lightweight, Durable Frame: Built with sustainable Evolve bio-based frame material that’s lightweight and durable; AutoLock hinges mean easy one hand on/off Make the Details Pop: Features ChromaPop lens technology that helps enhance definition, contrast and natural color so you never miss a detail; the smudge- and moisture-resistant coatings mean easy cleaning & clear optics Removable Side Shields Included: Removable, ventilated side shields add peripheral light coverage, and low-profile, adjustable temple arms let you customize the fit; Also includes goggle-inspired strap, microfiber pouch and hard case Born on the Mountain, Built from Innovation: Smith is a performance eyewear and helmet brand for those inspired to pursue new and deeper connections with the outdoors; we’ve been outfitting consumers with the confidence to experience more since 1965