eBay has the Callaway Men's Polarized Sunglasses (Multiple Styles Available) for $22 with free shipping. Retail price: $132. Designed for both the professional and amateur player, incorporating the latest developments in lens and frame technology with fashionable design.
6PM has the Oakley Men's Turbine Sunglasses (Olive) for $60 with free shipping. Retail price: $140. Features O-Matter frame stress-resistant and lightweight, single bridge, integrated hinges for a secure open and close, logo hit at temples, unobtainium panels at temple tips and nose for added grip when wet.
6PM has the Oakley Men's MPH Fast Jacket XL Sunglasses (Team Orange) for $80 with free shipping. Retail price: $250. Features polarized lenses.
eBay has the Ray-Ban Unisex Wayfarer Light Ray Sunglasses (Matte Dark Blue) for $50 with free shipping. List price: $215. Features light and never bulky blue plastic frames, 50mm grey gradient lenses, 100% UV protection.