An compression therapy device which improves on available products by combining the efficacy of bulky, active pneumatic devices with a convenience approaching that of a passive non-pneumatic device. This is achieved by using an air cell (6) with a flexible inner and a rigid outer wall (10) which enables therapeutic pressures to be achieved at lower overall inflation volume. This in turn allows miniature low power, silent pump (3) to be used enabling the device to be worn unobtrusively under clothing. Such a device is targeted at users with long term chronic venous conditions, variants of oedema, recovering from surgery, requiring travel comfort, improved leg circulation or accelerated recovery from exercise or injury.
