Today only, these Coach Alyssa Flip-Flops, originally $48, drop from $21.99 to $19.79 with code DADSDAY10 today at 6pm.com, an Amazon company. This is the lowest price we've seen so far this year on these Coach sandals, which are sold out at most sites (we usually saw them for $40 at department stores). You can also get the Amel style at this price. Note that a few colors are sold out, but most are still in stock in sizes 6-10. Shipping is free when you buy two items or spend $50, otherwise it adds $4.95. Sales tax is charged in most states.