Julbo\'s stylish Shield sunglasses are ideal for those who climb, run, or ride in the mountains. With non-slip curved temples and a flexible nose grip, they will stay on your head when things get bumpy. Air Flow ventilation incorporated into the frame aids cooling and avoids fogging. The soft removable side shields increase coverage for better sun protection.Chameleon Reactiv photochromic High Mountain lenses maximise protection. The lenses get darker or lighter to match changing light conditions. Polarisation eliminates glare on reflective surfaces, making it easier to read terrain. They are ideal for the extreme visual conditions experienced when mountaineering or skiing.