Welcome, like others have said go very lightly with conditioner, like putting on skin cream on your skin or hair product take a small dollop with your finger melt it with your fingers and massage it on the dry part of the jacket dont over do it you dont need to do it to the entire jacket if the dry part just around the elbow or shoulder area for example then condition those areas only. If you sweat on your neck then by the end of the day wipe the inside of the collar with non alcohol wet tissue.