Replying to How do I thicken my pants and make them less like parachutes?

My snowpants are really thin and like parachute pants which causes them to move around and flap a lot and not exactly retain there shape like harlaut cargos do. So I was thinking what if I took a thick fabric or something and lined the inside with it, would that work to make the pants less parachutey and more like thick snowpants? Is there anything else I can do? I’m still tryna keep them as baggy as possible.