Duduma Sunglasses via Amazon offers the Duduma Polarized Fashion Sport Sunglasses in White/Blue, model no. Tr80821, for $19.99. Coupon code "LTVJDDE7" cuts them to $10.99. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.48.) That's $29 off list, tied with our mention from last week, and the lowest total price we could find. They feature 100% UV protection and include a cleaning cloth and fabric pouch.