Crocs via eBay offers the Crocs Unisex Hilo Clogs
in four colors (Navy pictured) for $17.49
for shipping. That's the lowest total price we could find by $4, although we saw them for $7 less last week. They're available in most men's sizes from 4 to 10 and most women's sizes from 6 to 12, although not in all size/color combinations.