Today only, Tanga.com offers this Six Pack or Lunch Cooler Bag for $5.99, with $4.99 shipping, making this the lowest price we could find for a 6 pack cooler bag by $5. These bags come with a thin cold pack that can be frozen, and will keep the contents cold for hours. It is available in Red, Blue, or Black. It also comes in a twelve pack size for $3 more. The shipping cost of $4.99 is good for up to three total bags. Sales tax is not charged in most states.