Product review (5 stars): Better than the original !!!
This appears to be siliconized rubber.
It is much more flexible than the original which has gotten brittle over time.
However, it is thinner, lighter, etc., so hope it is as durable.
Feature of difference, easier to get stuff down it, remove and wash etc.
If it is siliconized rubber, it in theory should be easier to clean, and not be prone to hold bacteria and growths,
... thus listed as Anti-Microbial Quiet Collar...