The consummate adventurer. These provide highly functional mountaineering and outdoor eye protection. The special filter color brown #4 is designed for extreme sun conditions. Ultra-light SPX frames with a wide field of vision and optimal protection. Exchangeable temples can be replaced with a headband. Removable face padding and nose protection for full protection against the sun and wind. Interchangeable lenses for differing light conditions. Their 10-base Masters PC lens filters with anti-fog coating are more than strong enough for use on glaciers. They have already been put through their paces on the highest mountains and most extreme tours. Package consists of basic frame, adjustable strap, 1 pair of antifog lenses, soft foam pad and nose cover.