Vintage Plaid Wool? Jacket

Vintage Plaid Wool? Jacket Bought off of Poshmark auction and then found out I have an allergy to wool. Very itchy but to someone this is a dream vintage find. No tags, but extra button on inside of jacket. Mixed between a tan and dark brown. Best colour I can describe for the stripes running through is like a coral pink but could be wrong. 21” pit to put measured from the back 26” length 22” sleeve length