The present invention relates to a sports shoe characterized in that an inner layer member or an inner shoe provided with a member possessing a form corresponding to the shape of foot is attached to the inside of the sports shoe, an air receiving cell is provided adjacent to said member, and said member is adapted to contact closely the foot under the pneumatic pressure caused by supplying air into the air receiving cell.
A heel and foot air-inflatable member for use with a foot gear such as a ski boot. The member is in the form of an arched configuration having an air-fill means sufficiently long to allow the member to be inflated after it is positioned within the foot gear. The arched configuration is maintained by a connecting link positioning spaced arms of the arched member.
A flexible insert for a boot comprises a foot-fitting liner with a core of elastomeric sheet material sandwiched between two skins. At least part of the core is an open-celled foam polymer in an air-impervious envelope, preferably of heat-sealable plastic.
The disclosure relates to a preformed lining component for a skate boot. The component is of laminated construction and in the specific embodiment disclosed includes a foam cushioning layer disposed between an inner layer of brushed nylon fabric and an outer vinyl layer. The component incorporates ankle pads and is manufactured on a high-frequency heat welding press which is arranged to contour the lining component for improved fit and comfort in wear.
Method for custom fitting ski boots by injection comprises injecting a flowable injection material into a suitable cavity in the boot against a predetermined back pressure, suitably created by air or other gas, and maintaining the back pressure during solidification or retention of the fitting material.
An athletic shoe is described, provided with an inflatable tongue or bladder for a more secure fit to the user's foot. The bladder is inflated with a pump which has a foam material disposed therein.
