CO 48

Work 2x2 rib for 4.5” (might shorten this)

Thumb gusset (16 rounds):
Rnd 1: K2, PM, KLL, P2, KRL, PM, work 2x2 rib (4 sts between markers)
Rnd 2, 3: work in patt
Rnd 4: K2, SM, KLL, K1, P2, K1, KRL, SM, work 2x2 rib (6 sts between markers)
Rnd 5, 6: work in patt
Rnd 7: K2, SM, PLL, K2, P2, K2, PRL, SM, work 2x2, rib (8 sts between markers)
Rnd 8, 9: work in patt
Rnd 10: K2, SM, PLL, P1, K2, P2, K2, P1, PRL, SM, work 2x2 rib (10 sts between markers)
Rnd 11, 12: work in patt
Rnd 13: K2, SM, KLL, P2, K2, P2, K2, P2, KRL, SM, work 2x2 rib (12 sts between markers)
Rnd 14, 15: work in patt
Rnd 16: K2, SM, KLL, K1, P2, K2, P2, K2, P2, K1, KRL, MS, work 2x2 rib (14 sts between markers)

Next round: K2, place sts between markers (14 sts) on waste yarn, CO 2, work 2x2 rib to end of round

Work 2x2 rib for another 2.75” BO with interlock BO (k version)

Thumb: pick up 2 sts from the hand/thumb area thingy, work 2x2 rib for rest of round (16 sts total).
Work 2x2 rib for 1” (maybe shorter? idk)