Björk RugMeet the Bjrk Rug. The Bjrk collection is based on a weft in wool contrasted with leather details. Wool is both soft and resistant to soiling thanks to its natural oils. The woven pattern is inspired by the black and white trunk of the birch tree (which in Swedish is Bjrk). The marbled effect is made by intertwining different colored wool yarns in the weft. All Bjork pieces are hand woven and unique. The Bjrk rug comes in a mat, a runner, a medium