These mittens are knitted from the cuff, starting with a twisted rib and then the two color pattern starts.

The pattern contains charts for both a dark and a light main color.

There are increases for the thumb gusset in order to make them fit the hand better. The thumb is a knit in thumb. The pattern includes a link to a video tutorial for this type of thumb.

You can easily change the size by going up or down a needle size or using a thicker or thinner yarn. Note that changing needles or thickness of yarn may change amount of yarn needed.