My Helmut Lang coated jeans lost their coating fairly quickly. There is a proper method for cleaning them that involves a brush and no water (and a different set of instructions for if the brush method doesn't work)
If your coating comes off, it can be redone with the right wax and a hair dryer.
Google the care instructions for Barbour coated jackets for the best care information. There are guys out there who take their waxed jackets very seriously, and they offer great tips.
http://www.barbour.com/anatomy/wax
https://blog.philipmorrisdirec.....ur-jacket/
I re-coated my pair once and decided I wasn't doing that again until we had an actual house (because doing that in my RV was NOT fun because NO SPACE LoL) That's IF I decide to coat them again, I am starting to become attached to the softer look of them without the coating