After knitting my first pair of mittens, I decided to get a little creative and knit half mittens. I debated on knitting an entire thumb or knitting half the thumb and then ribbing. I chose the ribbing. I used medium worsted Merino wool. What I like best about this style of mitten is that while it's easier to knit, the style lets your fingers stay close together which helps keeps your fingers warm, but you can still use your cell phone and such. Each one took about two days to knit, and both took less than skein of yarn to make. A pair of men's medium mitten takes less than a skein of yarn when knitting with a #5 and #7 needle.