The "Titanium" knot is a part of the "UK Fibre Supplier" line.
These fibres are from the company that has been supplying the world's oldest shaving brushes (est. 1919) from the UK with both badger & synthetic fibres for 40+ years now.
The name is very much a nod to fibres used in their "premium" line of synthetics, as the fibres come from the very same source.
These fibres are known for having ultra soft tips and superior backbone. This knot behaves fairly similar to those of the "G5" line, although I'd consider the backbone of these tapered fibres even stronger than the G5 line. Definitely a must try!