Amazon offers Prime members the Columbia Women's Sunbreeze Vent Flip-Flop Sandals in Black Platinum or Fossil Orange from $10.50 with free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping costs $5.48.) That's a low by up to $9 and the best price we could find. They're available in sizes 5 to 11, with prices varying by size.