The Oakley Clifden is the ultimate mountaineering glasses that protects against the most severe weather conditions. These stylish glasses combine Prizm lenses (the best lenses!) with a functional frame that features detachable side shields and nose bridge blockers that block glare and protect the face. In addition to a Unobtainium nose bridge (provides grip even when you sweat), the Oakley Clifden also has an integrated light, flexible, coated and woven steel strap, so you can enjoy your adventure without losing your glasses!