Walmart has the Flying Fisherman San Jose Polarized Sunglasses (7789GS, Gunmetal) for $15 with free in-store pickup or $5.99 shipping to home. List price: $25. Features polarized lenses eliminate glare and reduce eye fatigue, impact- and scratch-resistant lenses, 100% UVA and UVB protection.
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.