If you wear a size 10 in womens I think you should try a SIZE 9 in mens--
here is why ....
I came across the following webpage a while ago - and thought it was pretty interesting way of figureing out what size shoes my children should be wearing - check it out and tell me if I read it wrong ...
http://www.kohlscorporation.com/ecom/valueadded/ProductGuides/Shoes_Me asuringTips.htm
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The WOMEN'S conversion chart tells us that if you wear a size 10 then your foot should probably measure about 10 3/8" (from back of heel to the tip of your longest toe) - OK, so then if we look at the mens chart for a measurement of 10 3/8" we find the corresponding size should be 9!

