Sizes: 1 (2) 4 (6) 8 (10) years

Gauge:
10 cm in stockinette stitch on needle size 5.5 (6) 5.5 (6) 5.5 (6) = 15 (14) 15 (14) 15 (14) stitches
10 cm stranded knitting on needle size 6 (6.5) 6 (6.5) 6 (6.5) = 15 (14) 15 (14) 15 (14) stitches
(The needle size given is only a suggestion. If you get more stitches per 10 cm than specified, go up one needle size. If you get fewer stitches per 10 cm than specified, go down one needle size.)

Yarn: Vams from Rauma Yarns

The amount of yarn you need:
Base colour 1: 100 (150) 200 (200) 250 (250) gram 
Base colour 2: 50 grams
Pattern colour 1: 50 grams
Pattern colour 2: 50 grams
Pattern colour 3: 50 grams
Pattern colour 4: 50 grams

Buttons: Need 2, 3 or 4 buttons. Either toggle coat buttons, reindeer horn buttons or round buttons, size 20-23 mm

Needles
Double-pointed needles 4.5 mm, double-pointed needles 5.5 (6) 5.5 (6) 5.5 (6) mm and 6 (6.5) 6 (6.5) 6 (6.5) mm
Circular needle 50 cm or 60 cm (depending on the size) = 4.5 mm, 5.5 (6) 5.5 (6) 5.5 (6) mm and 6 (6.5) 6 (6.5) 6 (6.5) mm

Sweater measurements. Size 1 (2) 4 (6) 8 (10) years
Sleeve length: 19 (25) 29 (31) 35 (38) cm
Chest circumference: 64 (68) 72 (77) 80 (86) cm
Body length: 22 (27) 31 (33) 35 (38) cm