Clarks Shoes is to launch Active Mover, a new range of outdoor boots that features a revolutionary shock absorption system that is designed to minimise foot movement, preventing rubbing and blistering. The BioPod system (Biomechanical Performance On Demand) is a small plug that sticks out slightly from the heel of the shoe. As the wearer's heel strikes the floor the plug compresses, absorbing the energy and spreading the resulting pressure evenly across the heel of the insole.