04043058 is referenced by 115 patents and cites 6 patents.

A straight last athletic training shoe is described employing a foam core sole layer and an apertured sole layer between a harder outer sole layer and the shoe upper. The apertured sole layer provides lightweight cushioning and is preferably a heel lift layer positioned below an intermediate sole layer having a soft resilient foam core surrounded by a border portion of harder resilient material for stability. The foam core is provided within an elongated opening extending longitudingly beneath the heel, arch and metatarsal bones of the wearer's foot for greater cushioning and support. The apertures in the heel lift layer are arranged in three longitudinal rows with at least some apertures being in alignment with the foam core of the intermediate sole layer and the middle row having apertures which are staggered out of alignment with the apertures of the outer two rows.

Title
Athletic training shoe having foam core and apertured sole layers
Application Number
5/688843
Publication Number
4043058
Application Date
May 21, 1976
Publication Date
August 23, 1977
Inventor
Dennis E Vixie
Eugene
OR, US
Geoffrey L Hollister
Eugene
OR, US
Agent
Klarquist Sparkman Campbell Leigh Hall & Whinston
Assignee
BRS
OR, US
IPC
A43C 15/00
A43B 13/18
A43B 1/10
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