Abstract: A boot shaper for treating crease or stretch marks in legged boots, comprises an inflatable sock which is inflatable through an air inlet means and is deflatable through an air pressure relief means so that the sock can be pulled from a boot after use by a handle means in use of this boot shaper, the at least partially deflated sock, is inserted into the boot to be treated, inflated to pressurize the boot to an extent sufficient to reduce or eliminate the crease or stretch marks over a period of treatment, the sock then being deflated and removed from the boot using the handle means.