I wrote this pattern in one size as a gift, and am offering it as a free pdf for your personal use only. I used Grignasco Tango, which is identical (in every way) to Rowan Felted Tweed. There are tips for re-sizing it from 38” to 50”. The size 44” chest took exactly 894 yards (under 5 skeins), see the ravelry entry here. Please let me know if you find errors, and I will revise the pattern. Happy New Year!