Oakley - BXTR pays homage to Baxter Street, a popular skate spot in Los Angeles where style and authenticity are always on display, just like this frame. The sunglass was developed by Oakleys team of designers who worked closely with friends of the brand in search of the next fresh take on lifestyle eyewear. In a nod to our heritage, BXTR features a shield design and a modernized trigger stem inspired by Oakleys original Razor Blade sunglasses, mixed with modern style to elevate individuality. The plant-based BiO-Matter* frame material provides lightweight comfort and durability. *BiO-Matter is made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources). Category 3. General purpose sunglasses. High protection against sunglare, good UV protection, not suitable for driving at twilight, at night or under dull light.