Rocket Dog Women's Snowflake Slipper, Black Chunky, 8.5M US-My Feet stay toasty warm inside these Rocket Dog Snowflake Slippers. I do not understand the reviews containing complaints that these slippers are not suitable for outdoor wear. These are house slippers & not to be confused with booties made to wear outside of the home. I love these slippers. The fit is snug yet comfortable. I wear a size 8.5 shoe & I ordered these slippers in the same size. I woke up one morning to find that it was a chilly 28 degrees Fahrenheit which may not seem cold in all of those states covered in snow. However, in the one state in this nation which is not, Florida, it is very cold indeed! I decided right then & there that I was going to find a warm pair of slippers for my cold feet. I knew I wanted a style which would cover my ankles as well. These slippers fit my criteria perfectly & I highly recommend them!