Strong, low-density, highly corrosion-resistant, metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability Titanium is the best material for glasses because of its special traits. MONEL A nickel-copper extraction characterized by a high level of resistance to corrosion and Extreme temperatures. Rubber touch Extreme use rubber touch in most of sunglasses models because it is comfortable and non slide when the athlete is getting sweet. Soft, hypo-allergenic rubber used for temples tip and nose pads that offer a high degree of elasticity for maximum comfort. Adjustable nose pads Specific design to ensure maximum comfort and eliminate any slippage. Speedy change lenses Easily and quickly change out lenses to manage any activity condition. Flex Spring Hinge Ensure to fit head size and offer the maximum comfort. Adjustable Temple tips Tips could be adjusted in full direction to offer the proper pressure on your head to eliminate pinching.