Woolmark reports AgResearch testing of fabrics intended for first-responder base layers, including wool-rich blends and synthetic materials. The work examined responses to flame and an accelerant threat. Melting behaviour was an important difference, with some synthetic samples damaging the simulated skin surface more severely.

Protective Base-Layer Testing Shows Why Melting Behaviour Matters

The source explicitly notes that fabric weights were not matched across all samples. Its results should therefore remain tied to those test constructions. A wool label alone is not protective-clothing certification; the complete garment, treatments and hazard-specific standards still determine whether equipment is suitable for professional use.