GLACIER - Experience life-size emotions Glacier sunglasses are designed for the mountains and protect eyes from bright light thanks to category 4 lenses with 6% VLT and soft shields to block light from the sides. Hooked arms designed with an anti-slip covering ensure glasses stay on even in extreme conditions. As with all our sports frames, the hinges are fitted with rivets for long-lasting durability. The Glacier is available in two shapes, the round #G and aviator #I, to suit all face shapes. NB: For safety reasons, it is forbidden to drive with category 4 glasses. The sun emits visible and invisible electromagnetic waves. The most harmful invisible rays are ultraviolet (UV) rays, which are dangerous even in cloudy weather as no more than 10% are absorbed by clouds. Sunglasses cat. 4, VLT 6% Glasses will protect your eyes from intense light thanks to their 100% UV category 4 brown lenses: designed to ensure optimal contrast in mountainous environments. Removable side shields The side shields increase the protection against the intense light of the mountains. They can be removed if the light level decreases. Bio-sourced material The frame of the glasses is made of 45% organic polyamide sourced from castor oil. Hook branches The hooked temples of the glasses ensure an optimal support to all the forms of face, for a sporting practice without constraints.*** PLEASE NOTE: Blundstones cannot be shipped to Canada. Glacier sunglasses - Black