I lost so many mittens answering the phone in winter that I started knitting Smart Phone Mittens with thumbholes and another hole for your index finger so you can talk and text and stay warm. I hand knit the mittens in the round so that they work for both right and left handed people.
Knit with local Baltic raised wool spun in Pāce, Latvia where no chemicals are used for washing, just water from the pond. There are still bits and pieces of meadow chaff here and there to prove it. I blend it with super soft kid mohair and some cotton or silk threads for color accents and windproofing.
These MAN sized mittens are PREWASHED on a wool cycle, I then lay them flat to dry. Easy to care and practical to wear.