A basic go-to sweater designet on brief from my teen.

Sizes
12-14 y (XS) S (M) L (XL) XXL

Yarn
Pickles Mjuk Merino
300 (350) 400 (450) 500 (550) g
Pickles Soft Fuzz
200 (250) 250 (300) 300 (350) g

Needles
16” and 32” circular needles US 7 and 9

Gauge per 4”
Stockinette on US 9: 14 sts / 22 rows
Rib on US 7: 18 sts / 24 rows

Measurements, lying flat
Width: 17.7 (18.9) 20.9 (22.8) 24.8 (26.4) 29.1”
Length not including neckline: 19.3 (22.8) 23.6 (24.4) 25.2 (26) 26.8’’ / 49 (58) 60 (62) 64 (66) 68 cm