Fingerless gloves that convert to mittens with a sewn on finger cover.
Tied back while not in use with a button on the cuff.

Pattern includes different options for separate finger holes or without. Also completely covered thumb, or tip of thumb to be out.

You will need size US 6 dpns, or two US 6 rounds to work magic loop. 3 stitch markers, a tapestry needle, and two beautiful buttons.

You can make the complete mitt with one skein of Noro Taiyo yarn.