Hello everyone, I just acquired a new pair of shell cordovan Alden chukka boots, with the intension of wearing it while I'm travelling on business. Of course, to avoid premature wear, I take another pair of Bally oxfords to rotate (shoe trees included) along with a little shoe shine kit. Bad mistake... For some reason (I'd say it's a steel shank in the arch area between the toe and the heel), the Aldens set off metal dectors at the airport. In the new, security conscious world, that means taking my shoes off and putting them thru the x-ray machine. Now, I think we should compile a list of shoes that set off metal detectors. This list would be helpful for future shoe purchases. Don't be like me who finds out after it's too late. To those more knowledgable on the topic of shoes, is there an explanation of why a some makers put so much metal in the shoes? Is it for a more solid construction? Or is it a sign of bad construction?