The Adidas Women's Climacool Ride shoe is lighter than air with support!  Frankly, I have no idea how Adidas achieved this.  I purchased my first pair before going to Disney World the end of 2011.  This is the first time I didn't get one hot spot or blister on a marathon walking vacation!  I have narrow heels and shoes usually ride up and down resulting in raging blisters.  But, this shoe is so light that it doesn't pull itself up and down in the back.  What a pleasure not to have to stop and retape or rebandage your feet.  When coupled with a non-cotton sock these shoes will keep your feet happy for hours and hours of wear.  I now have three pair and am keeping my fingers crossed that Adidas keeps making this line!