Review on Men'S Winter Slippers Memory Foam Booties With Sherpa Plush Lining, Non-Slip Rubber Sole, Indoor/Outdoor 7-14 by Tim Kallimanis

One review stated the sole is too hard to walk in and had no flex. Actually they are kind of stiff but if the manufacturer put a zipper or button on the front it would better secure the foot so the sole would flex better. The issue isn't the sole it's the front opening of the slipper. I'm returning mine.