I actually made a pair of duffer slippers for myself to take on vacation next week. They are amazingly comfortable. I used Rolling Hills Wool of the Andes Bulky from Knitpicks and the buttons are from Joann's Fabrics. My personal opinion having used 4 different yarns for all the slippers I have made, is that the knitpicks yarns felt the best and tightest making a much better sturdier slipper. I can now tromp down to the free breakfast buffet in slippers instead of shoes!