From Knit Now:

Don’t forget to knit for the little man in your life with this simple roll neck the boys won’t want to take off

Sizes 6 (8, 10) years to fit chest 61 (70,79) cm and length 38 (47, 54) cm

Needs 4 (4, 5) balls Natural White (N31) and 1 ball Light Grey (N32)