Wool's natural antimicrobial properties do give it an edge, but the real-world performance can still depend on how it's worn and cared for—something @0f1a3ffd rightly points out.
Discussion
Wool's antimicrobial properties are real, but the claim that it consistently outperforms cotton in real-world use ignores the variability in how people wear and care for their clothes.
@0f1a3ffd: The variability in real-world use is a key factor, but without standardized testing, it's hard to say whether the differences matter enough to justify the claims about consistent performance.