The "Fleece" is synthetic :(
Reviewed by Avidproxy from New England on Wednesday, October 4, 2017
Don't waste your money on these even at the sale price - you could get an actual pair of FLEECE (natural fiber) slippers on a good sale. The "fleece" lining on these slippers is sparse and synthetic. I should have read the specs more closely instead of the title ad Sierra provided. The reason I even gave them 2 stars is because I like the fit and the crepe soles. The length is perfect and the upper is good if you have a fuller medium to wide foot and a high instep. I find them comfortable in that regard. A previous reviewer noted they were not good for a narrow foot and that would be correct, unless you plan to wear them with socks.