Breakthrough research confirms that Merino wool provides superior thermoregulation for athletes, outperforming other fibres in maintaining comfort during dynamic stop-go sports. The studies highlight Merino wool’s ability to buffer moisture more effectively than polyester (96% better), cotton (45% better), and viscose (26% better), keeping the next-to-skin microclimate stable across periods of exertion and recovery.
A four-year research program led by North Carolina State University demonstrates that 100% Merino wool base layers enhance performance in sports such as cycling, rock climbing, hiking, and golf. The concept of dynamic breathability reflects how wool adapts to changing conditions: managing heat and moisture during activity and preserving warmth during rest.
Unlike synthetic apparel, Merino wool maintains thermal equilibrium, helping athletes avoid after-chill, conserve energy, and remain comfortable. Wool’s naturally designed structure responds in real time to physiological needs, keeping wearers close to their comfort zone and enabling focus on performance.
Key findings include:
- Better Regulation in Real-World Conditions: Wool sustains comfort across both activity and rest phases.
- Superior Moisture Management: Its dual-layer structure absorbs moisture vapor efficiently without feeling wet.
- Thermal Advantage: Maintains a stable microclimate next to the skin, reducing body effort to stay comfortable.
The research has sparked interest from leading sportswear brands, underlining Merino wool’s role as a scientifically validated, high-performance natural fibre. Its dynamic breathability positions it as a cornerstone for next-generation sports apparel that prioritizes comfort, performance, and sustainability.
John Roberts, Woolmark Managing Director, stated: “Merino wool breathes, buffers, and performs better across real-world conditions, allowing athletes to stay in their comfort zone and focus on the challenge.”
