US Patent 10327515 Footwear with compressible fluid-filled chamber

Articles of footwear have an upper and a sole structure. The upper includes an adjustment system having a base element, a fluid-filled chamber, an adjusting element, an anchoring element, and a tensile strand. The adjusting element is positioned outward from the fluid-filled chamber. The anchoring element is secured to the base element and is spaced from the adjusting element. The tensile strand extends between the adjusting element and the anchoring element. The adjusting element is operable to change a tension placed upon the tensile strand.