Sungait via Amazon offers its Sungait Men's Ultra Lightweight Rectangular Polarized Sunglasses in several colors (Black Frame/Gray Lens pictured) for $14.99. Apply coupon code "GW3MYK69" to cut them to $9.99. (Gunmetal Frame/Gray Lens enjoys an extra 5% off clippable coupon, cutting it to $9.24.) Plus, Prime members bag free shipping. They feature 100% UV protection.