Naturally Better

The crimp in wool fibres makes them stand apart from each other; as a result little pockets of still air are trapped between the fibres. In addition, most individual wool fibres have hollow spaces or ‘medulla’ which further increase its insulation performance.

These properties, combined with wool’s breathability mean wool significantly outperforms man made fibres for insulation. Testing by the Energy Research and Development Corporation, Wool Research and Development Corporation and CSIRO in Australia determined that maximum daytime temperatures can be reduced by 3°C and minimum night-time temperatures can be increased by 2°C for wool over man-made fibres.