Nature doesn't judge C and with the rainbow being a symbol for diversity openness and equal rights Fjllraven thinks it perfectly captures the spirit of outdoor life. Knken Rainbow celebrates every individual's freedom to express herself and for each backpack sold 1 % of proceeds is donated to projects within Fjllrven's Arctic Fox Initiative. A special edition pack with all that great Knken love and a bit more.Vinylon FVinylon F is the functional fabric that has made Kanken daypacks seemingly immortal for the last 30 years. While being a synthetic fiber Vinylon F shares many benefits with natural fibres. Fabrics used for backpacks usually need a coating to become water resistent. This is functional initially but the coating inevitably loses its waterproofness over time. Vinylon F on the other hand behaves like a natural fibre and swells when it gets damp. Moisture actually makes the fabric weave tighter so that it resists water without the need of a coating. The result is a lighter and more durable material. Combined with excellent resistance to abrasion Vinylon F is a fabric that continues to prove its durable functionality year after year.