NIKE, Inc.
Article of Footwear With An Adaptive Fluid System

Abstract:

An adaptive fluid system for an article of footwear is disclosed. The adaptive fluid system includes a fluid chamber that provides cushioning and shock absorption for a foot. The adaptive fluid system includes an adjustable pressure regulating valve that may be used to control the pressure of the fluid chamber. The adaptive fluid system includes a valve that prevents fluid from escaping from a fluid chamber during use.