US Patent 7159340 Boot for sporting activities

A boot having a sole and an upper, the boot extending longitudinally between a heel and a tip, the upper having an outer envelope and an inner envelope, the boot having a mechanism for tightening the inner envelope, the mechanism for tightening the inner envelope having keepers affixed to the inner envelope and at least one lace. The mechanism for tightening the inner envelope has at least one rear keeper affixed to the outer envelope, the rear keeper being located substantially toward the heel of the boot.