Loch Lomond finger-less mittens are a form-fitting mitt with a beautifully crafted thumb gusset.
Instructions for this pattern are written for using the magic loop, but you may easily substitute your preferred method for small circumference knitting. All measurements are given in US and metric, and the cable pattern is charted and written for personal preference.
Measure hand around palm above (but not including) thumb.
6.58.5 in / 16.521.5 cm hand circumference
52 stitches and 44 rows to 4 in / 10 cm in 2 x 2 rib (unstretched)