These booties are the absolute pinnacle of comfort. The fact that they can be "cuffed" to be a bit shorter or "un-cuffed" to cover above the ankle is a bonus. I live in South Florida in the winter and Vermont in the summer, and I have a pair in both places. You might think these booties would be too warm for those locations at those times of year, but nothing could be further from the truth. These fabulous slippers are perfect for Vermont summer nights in the 50's/60's and Florida winter nights in the 50's/60's as well, not to mention the wonderful softness they provide the minute you slip them on. After a day being on the go, the thing I look forward to the most when I get home is putting on my slippers - even more than getting out of my bra. They are truly five star! I am a size 8 to 8 1/2, and I ordered the booties in size 8. My Florida pair fits perfectly, but my Vermont pair are actually a little big. The sheepskin does flatten over time, so keep that in mind if they feel a bit snug at first. I can't explain it, but somehow they keep your foot temperature regulated without over-heating. I guess that's because they use the best sheepskin in the world. Uggs simply cannot compare!