Wind deflector having a fastening system for an unfoldable deflector element

A wind deflector for a vehicle roof capable of being opened and having a displaceable cover element, the wind deflector, comprising:

• an unfoldable deflector element which is made of a flat flexible material and whose lower edge portion is connected to a vehicle-mounted base via a lower edge strip and whose upper edge portion is fastened to a pivotable deploying bow via an upper edge strip, the lower edge strip lower edge strip and the vehicle-mounted base and/or the upper edge strip and the deploying bow forming a respective fastening system, wherein the fastening system comprises a fixing rib on one side and an arrangement of tabs attached to the fixing rib on the other side, the arrangement of tabs being formed along the fixing rib by alternating locking tabs and support tabs, the locking tabs and the support tabs being in contact with the fixing rib on lateral sides of the fixing rib facing away from each other.