Woolrich size medium wool hunting hat

Old Vintage Woolrich Hunting hat in Buffalo Plaid. It’s a size medium. For reference, I wear a size 7 1/8 fitted baseball hat and it’s slightly tight, so i assume it’s about a 7” fitted hat. Flaps pull down to cover ears. Good condition but does show slight signs of age. It’s 50 years old but still has a long lift to live!