These mittens can be worn on either hand. I love the rounded tops and the simple pattern. I used size 6 double pointed needles. I'm only changing needle size to change size of mitten. Size 6 for adult, Size 5 for teen and Size 4 for youth. Adjust length of thumb and mitten for size and no need to change number of stitches used. I made a baby sweater that did the same so why not our favorite patterns.
This shows the inside of the mitten. I carried the white yarn on the backside of the blue stitch until the end of the row and then let it hang until the next 4th row.