What happened??? I bought my first pair of KEEN Women's Sienna MJ Leather three years ago.  My black pair seemed to be wearing/stretching out, as evidenced by it not fitting snugly and my right heel starting to slip out, even with the elastic band. So I ordered another pair. They look well made.  At first I thought they fit the same, but soon realized that both my heels were slipping out of the shoe!  Does the "w" indicate wide?  The front feels the same, a comfy wide enough - for my toes - toe box.  Perhaps the country it was made in (India) had different specs? I looked closely at the construction of the heel and there seems to be no tapering to hold the heel...my previous pair ( made in China) was more fitted. They are going back.