So imprägnierst du Fjällräven Produkte mit Greenland Wax
I bought this (made in Finland) Fjallraven used at Goodwill years ago and, with coat of wax each year, it's a bulletproof barn and backwoods coat. : r/BuyItForLife
Clothing Cleaners and Protectors - Mestari Country Clothing - Mestari Countrywear
How to care for your Fjallraven Kanken and make it waterproof - Greenland wax tutorial - YouTube