I recommend wool

Full lengthe: (20) 22 (25) 29 (32) 36 cm

Alternatively

25 cm after washingGauge: 19 stitches x 38 rows = 10 x 10 cm in bubble patternNeedle: 4 mm

possibly 80 cm for (magic loop) or double-pointed needles

Annas Bubble Cardigan (DK) Merino Single I recommend woolSize: Newborn (0 3 months) 3 6 months (6 9 months) 12 months (2 years) 3 years Chest circumference: approx 37 (41) 45 (50) 53 (57) 61 cm Length: approx 18 (19) 22 (26) 29 (32) 35 cm Gauge: 20 stitches x 38 rows in bubble pattern on 4 mm needles = 10 x 10 cm. Recommended needles: 3. 5 and 4 mm. Magic Loop or double pointed needles for sleeves. Yarn: 1 (1) 2 (2) 2 (3) 3 skeins Single 220 from CamijoKnit Yarn consumption: approx 150 (200) 250 (350) 400