Vacuum system for article of footwear or apparel

Abstract

A vacuum system for a wearable article includes an adjustable element operable to form at least a portion of the wearable article. The adjustable element includes a bladder that defines an exterior surface and an interior void and a port disposed on the exterior surface of the bladder. The port is operable to provide selective communication with the interior void of the bladder. The vacuum system also includes a pump operable to automatically draw a predetermined volume of fluid out of the interior void upon engagement with the port to move the adjustable element from a relaxed state to a constricted state.

Dependencies are inferred from the claim text.