Duduma Sunglasses via Amazon offers the Duduma Polarized Fashion Sport Sunglasses
, model no. Tr80821, in various frames and lens styles (Black/Black pictured) for $22.99. Coupon code "G452YFOZ" cuts the price to $12.99
. Plus, Prime members receive free shipping
. (Non-members can spend $49 to qualify for free shipping; otherwise, shipping costs $5.48.) That's $33 off list and the lowest total price we could find. They feature 100% UV protection and include a cleaning cloth and fabric pouch.