The body and sleeves are worked back and forth and down top separately, and then join them together by sewing.
A video for how to do the special cast on of scout pullover has been uploaded by instagram: jjloveknitting

This pattern includes direction for sizes of XS (S) M (L) XL

Width at chest
42 (43) 44 (46) 47cm

Length from shoulder to hem
43 (44) 45 (47) 48cm

Sleeve Length from shoulder to hem
| 57 (57) 58 (59) 60cm

Needles: 3.00/3.50mm needle
Notions: one sewing needle, 4 nos. of 20mm button