This 20-inch Rolling Backpack, originally $100, drops from $39.99 to $33.99 with promo code SUPER at Macys.com. You can add a beauty item or spend $99 to avoid the $9.95 shipping charge. This is the lowest price we could find on a 20" backpack with wheels, and almost a match to the lowest price on 18" backpacks. Choose red or blue while supplies last. Quantities are limited. Sales tax is charged in most states.