I stocked up on the standard Leica straps. I removed the strange pad from a few, to go as neck strap for portability.
The other ones, I cut and made wrist straps from it.
The Leica strap lugs are superior to anything on the planet and allow me, to quickly change straps without hassle.
I wish, Leica would make a wider version of it too, to go with my heavier Nikons.