Today only, May 3, 2019, Proozy offers the Birkenstock Unisex Madrid Birko-Flor Sandals in toffee, cherry, or prink for $39.99 (89.95 – 31.96 instant savings – 18 coupon) with Free Shipping for a limited time. To get the discount, use the coupon code: DN3999 at checkout.