A DISSECTION of over 500 shoes worn by patients with foot eruptions disclosed that the materials used in the fabrication of this footwear were moisture repellent. The uppers and soles, if not made of materials naturally resistant to moisture, were treated to increase their moisture-proof properties. Adhesives used on the inside sealed any moisture leaks in the outer construction. Heel linings were coated to prevent the penetration of sweat. Droplets of condensed sweat have been seen on such linings in cool weather. The moisture-proof incasement around the heel does allow escape of some sweat vapor, but the opposite holds true for the distal two thirds of the foot. Shoes are laced or strapped on the feet, the tongue, vamp and insole arch forming a snug collar. Moisture tends to seal this collar, impeding the exit of sweat vapor and the entrance of air, especially when the person is inac
GAUL LE, UNDERWOOD GB. FAILURE OF MODERN FOOTWEAR TO MEET BODY REQUIREMENTS FOR PSYCHIC AND THERMAL SWEATING. Arch Derm Syphilol. 1950;62(1):33–45. doi:10.1001/archderm.1950.01530140037003
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