Using this idea as a guide.

I only have one skein of the Rapunzel and two of a coarser wool Boucle dyed to match. As the Rapunzel feels so good, I will use it primarily on the sleeves and maybe neck edge to get a comfortable shrug.

Well I over thought this and went only 1.5 times my body ( plus some ease). It was entertaining for the knitting group o watch me try to get this on, definitely not fun. Picked up what I thought was a row of stitches and cut. Added 12” to get twice body width, should work once I get it stitched together.

The extra length worked and now sewn up, this is a very handy piece to have. Wrapped twice it is both secure and warm, worn loose it allows for easy removal of one arm to quickly lower the internal thermostat when needed.