Neoprene

Here is a source of antimicrobial neoprene:

http://www.warco.com/sheet-rubber/neoprene/anti-microbial-neoprene/

Although there have been many announced attempts to replace neoprene in recent years, the only active ones I can find which are latex based are  Yulex  from the US and NaturalPrene TM from Sheico in Taiwan.