This article is part of my no swatch, any stitch count, any yarn mittens pattern. For introduction and outline of this pattern see: Knitgrammer’s no swatch, any stitch count, any yarn mittens pattern.
Previous article: Casting on and making the top for your mittens.
Next article: Making the cuff and finishing your mitten
Your mitten should now cover the top of your hand from the tip of your longest finger to the base of the thumb (see image) or if you are using the size chart the measurement should equal to the measurement A on the schematics.
3.1 Peasant thumb without a gusset
This is probably the easiest thumb pattern. Because there’s no gusset for the thumb your mitten should have some positive ease meaning that the circumference of your mitten should be larger than the circumference of your hand.
3.2 Basic triangle gusset
This is the most commonly seen thumb gusset on basic mittens. It looks like a small triangle. The gusset decreases are made every other round on both sides of the thumb.
3.3 Arched gusset
The decreases are worked only on the other side of the thumb every round. The gusset follows the form of the “life line” of your hand.
If you use arched gusset you can make quite close fitting mitts.