Okay, so these aren't the cutest slippers in the world but they were $16 less than the cute styles of Acorns so I got them.  I worried that they'd be really heavy and clunky, but they are just the opposite.  They feel lightweight yet solid and they never feel like they're going to slip off my feet - and as others have said they are like walking on pillows! I usually buy boot-style slippers to keep the tops of my feet warm, but somehow my feet never feel even the tiniest bit chilly with these.  As for sizing, I wear a size 7 to 7-1/2, bought the mediums and my toes just barely touched the ends. Over a day or so of wearing them somehow they formed to my feet so that my toes either don't touch the ends or I don't notice it. I've only had them about a week so I can't speak to how well they hold up over time but they seem like good quality.