Groupon offers the DeMarini VooDoo Paradox Backpack
in five colors (Scarlet pictured) for $37.99
with free shipping
. That's the lowest total price we could find by $7, outside of the mention below. It features adjustable straps, four pockets, and a removable panel.
A close price: BuyDig via eBay
offers it in the same colors for $39.95.