This pattern uses Phentex 100% Olefine Exelon yarn and faux fur. Pattern is for size 7, but can be adapted for size 6-10. Written and video tutorials also available. Slipper is worked with two strands of yarn held together. Olefine Exelon from Phentex is recommended for this pattern, but the faux fur Knit it! Brand can be substituted for another brand as it may not be widely available.