I was lucky enough to grab this jacket from ship John’s website when they were selling some extra items they had laying around the shop. Leather and construction is superb..goatskin is around 3oz. Jacket weighs 4 1/2lbs. Lining is a heavy cotton (probably 10-12oz) and sleeve lining is a very heavy satin/sateen. Fit is a little boxy, but expected for a utility jacket. This is a large and my specs are: 5’9” 180lb.