Needles:

4.5 for ribs  (US 7, UK 7) (neck, cuffs and body edge)
5.5 for working the jumper (US 9, UK 5)

Gauge:

18 rows x 12 sts = 10cm x 10cm (4 inches) in St st. 

Notes:

this is a top-down jumper, worked from the top, beginning from the neck (turtleneck) to the yoke. When the raglan yoke is worked, sleeves and body are separated and body is worked to the end adding some stitches for the underarms. When the body is finished, the two sleeves are worked by picking up stitches and knitting stitch previously left on hold.
Colour B should be a thiner yarn then Colour A in order to create a discontinuous effect when knitted together.

sizes are intended with some 10 cm (4 inches) of positive ease at the chest. Both sleeves and body are not intended to be close-fitting, they’re intended to be “comfy”.

instructions for short rows may be found at the end of the pattern. I used the “yo short rows”, but any kind of short rows can be used.

all measures in the pattern are in centimeters.