I don't remember exactly, but I think it was just a touch slimmer than Christian Scott, which was (and maybe still is) selling shetland sweaters for like 50 bucks. The sizing for Christian Scott is:
XL:- 116cms chest, 70cms neck to end of arm cuff, 62cms bottom of back collar to bottom hem.
Med:- 104cms Chest, 67cms neck to end of arm cuff, 61cms bottom of back collar to bottom hem
Small: Chest 100cms, upper arm 70cms (neck to cuff), back of neck to bottom of hem 60cms
If Scott fits you, you could just go with that, but the colors are kind of boring.