Marking a basketball industry first, Reebok's Answer IX shoe with the pump technology offers the perfect fit by surrounding the foot with an automatic, form fitting air chamber that you can turn on or off as needed. A large volume Pump actuator is located inside the heel of the shoe. When the consumer takes approximately five steps the Pump actuator is compressed and causes the shoe to automatically inflate. The shoe pumps up until the air chamber is inflated enough to form a custom fit around his foot. This inflation causes the shoe to form to the exact fit of the foot. The Answer IX will be Allen's 10th shoe from Reebok, and his first with the pump technology.