Some fabrics fight smell, others amplify it. Wool fibres — especially merino — resist odour naturally because they manage moisture and limit the bacterial growth that causes it; the best odour-resistant fabrics combine that with good breathability.
Ranked with a wool-family bonus plus breathability and moisture management. Scores combine ISO 6741-1 moisture data with breathability, thermal, and weight attributes — recalculated at each build, with no affiliate bias.