Ending today, Amazon offers the Calvin Klein Women's Cilil Boots in Shadow Grey or Black for $169. Coupon code "HOLIDAYS25" cuts that to $126.75. With free shipping, that's the lowest total price we could find by $42. They're available in sizes 5 to 10, although not in all size/color combinations.

Orders placed today (December 22) using Prime are guaranteed to arrive by Christmas. (Cut-off times vary by location.)