Shoe

Abstract

A shoe having a toe region, a middle region, a heel region, and a multi-layer, multi-density midsole; the midsole being comprised of at least a shank and a lower layer; the bottom surface of the shank having at least one longitudinal concavity and at least one longitudinal convexity, the longitudinal concavity typically occupying a substantial portion of the heel region and the longitudinal convexity typically occupying a portion of the middle region. Collectively, these elements contribute to making the shoe appropriate for both walking and higher impact activities such as running, and simulating the effect, and imparting the fitness benefits, of use on a sandy beach or on a giving or uneven surface regardless of the actual hardness of the surface.

Description

[0001]This application is a continuation in part of patent application Ser. No. 12 / 557,276 filed on Sep. 10, 2009.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to footwear and, in particular, to a shoe with fitness benefits which can be used during high impact activities such as running. The fitness benefits are imparted by a unique running or walking motion which is induced primarily by the shoe's midsole. The midsole has multiple layers and multiple densities. One of the layers of the midsole is a shank that allows the shoe to be lighter and to have a lower-profile which results in the user's foot being positioned closer to the ground; the shank also provides increased heel and midfoot support. As a result of these qualities / characteristics, the shoe can be worn during high impact activities such as running. The motion induced by the shoe is mimics the effect of running or walking on a sandy beach or on a giving or uneven surface.[...

AI Technical Summary

Benefits of technology

[0010]It is an object of the present invention to provide a shoe that can be used during high impact activities such as running and which provides certain fitness benefits not imparted by ordinary shoes. It does this by mimicking the effects of running or walking on a sandy beach or on a giving or uneven surface without inducing any pain or discomfort from doing so.

Problems solved by technology

Consequently, in every step taken during normal walking while wearing such shoes, the user is forced to overcome this abrupt, discrete pivot point.

This can result in significant pain and discomfort.

Prior art shoes that have attempted to mimic walking barefoot have been rather large and clunky.

They also have not been suitable for running or other high impact activities due to their relatively significant weight, high midsole profile, and low level of heel and midfoot support .

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