If you received your order in a RePack, you are welcome to use it for the return shipment to our warehouse in Triberg. Simply pack your return as usual and adjust the size of the RePack with the Velcro. Seal the RePack additionally with an adhesive tape (preferably paper tape). Then carefully stick the return label back to our warehouse in Triberg onto your RePack and make sure that the small flap with the address of RePack is folded INWARDS (not visible).
You can find more detailed instructions on how to use RePack for your return here.