These are Pirelli's take on all-weather runflats that are not runflats supported by the sidewalls but instead by an internal seal, like Conti Seal tyres. It is wrong to supply a repair kit with them because the seal inside the tyre is supposed to seal them. As far as I know, no one else makes all-weather runflats because the technology of self-supporting sidewalls is not compatible with the flexibility needed in an all weather tyre.