adidas via eBay offers the adidas Men's Duramo Slides for $20. In-cart, that drops to $15. With free shipping, that's the lowest price we could find by $9. They're available in sizes 9 to 16. Deal ends November 12.
Note: They're available in size 8 only for the in-cart price of $11.24 with free shipping.
Here's how to minimize and delay the chunk that Uncle Sam claims.