We can tell you that Ryders' Duchess sunglasses for women have shatterproof, polycarbonate lenses, and anti-slip nose pads. We can tell you that they sit comfortably on your face and they're lightweight enough that you won't even notice them on your head. But what you really need to know about Ryders' Duchess sunglasses is that they cost $39.99—but they look and feel and perform like $100 shades. So if you lose them off the chairlift or at the bar after skiing, it's not a big deal—you can buy another pair for 40 bucks.