I purchased the wicked good moccasins while I was 8 months pregnant with my 4th child. My shoe size ranges from a size 6 to 7 and based on reviews, I bought the 6. When I first tried them on, they were quite tight and I thought for sure I would return them. But being pregnant, I knew my feet were larger than normal, so I wanted to wait to see how they would fit after I had my baby and lost some weight. I called LL Bean customer service and they reassured me that I can return them at ANY TIME and get a full refund if I was not pleased! I am thankful I waited because after wearing the moccasins a few times, the fluffy inside molded to my foot to fit perfectly - not too big where they come off my feet and not too small where my toes touch the top. I have had them for almost a year now and I wear them almost daily. My feet stay very warm in them during the cold, Chicago winters, too! They only down side is the ties come undone, even when I double knot them. But a small inconvenience for wonderful slippers.
I bought on the reviews that they may run wide and I have wide foot. They are snug on my wide foot but not constricting. I love the way they feel and are perfect for the cold floors in my house.