Using 2.75mm dpns and 4 ply sock yarn cast on 52 sts loosely.
On the first round of k1, p1 rib join into a round (13 sts on each dpn needle).
Work 3 more rounds of rib for the narrow rib.
Knit 21 rounds of stocking stitch or the length you would like for the wrist section.
Set up round: m1L, place marker, k to the end of the round.
Round 1: k to the marker, slip marker, k to the end of the round.
Round 2: m1R, k to marker, m1L, slip marker, k to the end of the round.
Repeat rounds 1 and 2 until there are 21 sts between the marker and the start of the round.
K 5 rounds slipping the marker each time you reach it.
Place the 21 thumb sts onto a piece of waste yarn and remove the marker.
Cast on 2 sts and k to the end of the round (54 sts).
K 21 rounds (16 rounds if you chose to knit the deeper cuff).
Work 4 rounds of k1, p1 rib (8 rounds of k1, p1 rib for deeper rib edge).
Cast off in rib.
Slip the 21 sts that are on the waste yarn onto 2 dpns.
Pick up and k3 sts then k5 sts from the needle – you have 8 sts on needle 1.
K10 sts onto needle 2.
K6 sts onto needle 3 and then pick up and k2 sts – you then have 8 sts on needle 3 (26 sts for the thumb).
For thumb with narrow rib: k 4 rounds in st st, then work 4 rounds of k1, p1 rib, cast off in rib.
For thumb with deeper rib: k 2 rounds in st st, then work 7 rounds of k1, p1, rib, cast off in rib.
Sew in any loose ends.