Boy's suit by Pingouin

Boy's suit

Knitting
Sport (12 wpi) ?
11 stitches and 15 rows = 2 inches
US 2½ - 3.0 mm
US 5 - 3.75 mm
20 (22, 24, 26) inch chest
English

Materials
3 (3, 4, 4) balls of yarn.
Cable needle.
5 buttons.
Elastic for waist.