Look up “bagging” a jacket. Many are constructed with the right sides of the lining and the outer cloth together, then turned inside out. It works if the jacket

Look up “bagging” a jacket. Many are constructed with the right sides of the lining and the outer cloth together, then turned inside out. It works if the jacket is fully lined. Go ahead and remove the lining, but look carefully how the construction is done - you may well want to put it back in.