Pattern states 15 (17) (19) (20) 50g. An extra skein is advisable, based on the suggestion for the collar. (see below)

Pattern is clear and easy to follow. Garment knits up in next to no time. Although you would expect this to be a heavy garment to work on, it is not at all weighty on the arms when knitting.

Collar construction requires regular checking of tension and if anything needs to be knit loosely in order to achieve the shawl-like yoke.

Instructions given produce a fitted garment - not closely fitted, but if you like your thicker jumpers to be of the snuggly-baggy-oversize-boyfriend nature then you will have to knit one size larger.

An extra skein is advisable, based on the suggestion for the collar.