Proozy offers the Birkenstock Unisex Gizeh Birko-Flor Sandals in White for $64.99. Coupon code “GIZEH” cuts that to $55. With free shipping, that’s a buck under last week’s mention and the lowest price we could find by $45. They’re available in men’s sizes from 8 to 9.5 and women’s 4 to 11.5.