The Horze Women's Juliet HyPer Flex Full Seat Tights go for $59.95, a good price for tights that you like. But, if you order two or more - and why not?, they go for $52.95. With the 20% off sale, the discount for buying two pairs, and free shipping, I only paid $80.86.
See! Spend money to save. What's not to understand?