The pattern has 5 sizes. 
measurements 
to fit chest (suggested) 
76.5-81.5cm/30-32ins 
86.5-91.5cm/34-36ins 
96.5-101.5cm/38-40ins 
106.5-112cm/42-44ins 
117-122cm/46-48ins 
actual measurement 
85cm/33½ins 
92.5cm/36½ins 
103.5cm/40¾ins 
114.5cm/45ins 
125cm/49¼ins 
length 
57cm/22½ins 
58cm/22¾ins 
62cm/24½ins 
64cm/25¼ins 
66cm/26ins 
sleeve length (for all sizes) 
26 cm/10¼ins

The yarn suggested is WYS BLuefaced Leicester DK in Ecru and takes 
5(6:6:7:7) 100g hanks for each size. 
I used 6g of light brown for the neck edge but this is optional and you can use the ecru if you wanted. 
But it’s fun to use up bits of dk yarn you have left over from other projects.