When keeping things featherweight is a priority, reach for Oakley's Unstoppable Prizm Polarized Sunglasses for Women. These ultra-light, ultra-thin sunnies are their latest offering, packing in just as much tech as their heavier siblings, but at a fraction of the weight. Shades this streamlined deserve the best optics, so Oakley hooked them up with Prizm technology to make everything look vivid and vibrant. The lenses are impact-resistant for long-lasting durability, and feature glare-cancelling polarization, making them perfect for hours on the water, or road cycling, though we don't recommend them for mountain bike adventures, as polarization can hinder depth perception through undulating rocky terrain and trees.