One of our very favorite! All of us here at Frugal Haus, have at least one color or two hats in various colors styles. Use up your favorite colored yarns, and you will need fur yarn too. Uses a thick worsted weight yarn, and also a 16 circular needle, US # 9. A few double pointed needles in size # 9, just for the very last rows of decreasing. It is a breeze to knit! You too, will want to knit up more than one as we did! One size will fit most heads. It does give and stretch to fit nicely.