updated review: these are SO fast to make, easy project in one day. You can use ANY kind of yarn really, and they will fit anyone. They are PERFECT! I made mine longer, just ensure your thumb opening is where it is supposed to go, you can knit the arm part longer if you wish. Use team colors yarn, favorite color, even add a graph design to personalize them. I had some sequin yarn in my stash, and found this pattern in a search, but Ive already made 3 pairs using other yarn because this pattern is SO EASY and SO FAST it is a gem for doing those quick Christmas gifts in a hurry. Who would not want a nice pair of warm mitts for this season??