Adjustable Backpack Straps Fjällräven is crafted from Pine Weave, which is lyocell made from an innovative, sustainable process. It’s styled green, then waxed for a natural melange look and features a spacious main compartment and a flat front pocket that’s secured with a zip. You’ll also discover adjustable backpack straps, two carry candles and the brand’s instantly-recognisable logo sitting proudly on the front.