Consider carefully: do you really want to make an Inverness Cape, or would you be happier with a 'Coachman's Cape'? The latter has sleeves to keep your arms warmer, and then a shoulder cape, sometimes even detachable.
I have a lightweight Coachman's cape and just love it. There's a picture here which they childishly (in my mind) call a 'Victorian Detective'. https://www.historicalemporium.com/s...utfit_1072.php
Whichever you want, good luck! 
Rev'd Father Bill White: Mostly retired Parish Priest & former Elementary Headmaster. Lover of God, dogs, most people, joy, tradition, humour & clarity. Legion Padre, theologian, teacher, philosopher, linguist, encourager of hearts & souls & a firm believer in dignity, decency, & duty. A proud Canadian Sinclair with solid Welsh and other heritage.
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