The cylindrical fiber reinforced implant is designed to be inserted between two adjacent vertebrae. The implant having an outer wall with a general cylindrical or oval shape and preferably an open volume for bone filling. Said wall having reinforcing fibers which at least in part are oriented in a first direction. A support extending within said volume having reinforcing fibers which are at least in part oriented in a second direction, said first and said second directions are different. Preferably the fibers of the outer wall are at least partly concentrically oriented. The support is preferably a separately formed part, that is inserted into the outer wall.