Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor fit

I'm returning these to Amazon, both for the poor fit and poor design:1. The size runs large2. The short part behind the heel is not sufficient to hold the slipper on the foot and is just annoying.3. The material inside the slipper makes it very slippery and the slipper "walks" off the foot.On the plus side: It's a nice looking slipper.