Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sturdy, warm and comfortable

My husband has wanted a good quality slipper for a long time so I gave these to him for Christmas. He wears them all the time and loves them. In his case, they fit true to size. He wears a size 9 shoe and I got him the 9 and they fit great. He's got them in the "rootbeer" color. They're warm but do not "heat up" his feet or make him overly hot and they also keep his feet dry. We'd get these again in the future after he wears this pair out! (hopefully that won't be for a while)