Wool is a breathable fibre that provides instant warmth unlike synthetic materials. It regulates itself to individual body temperature (warm in winter whilst cool in summer). Wool is naturally water-resistant, repelling moisture vapour through its fibres. Wool is a highly practical fibre and when combined with a good quality cotton cover, it makes an unbeatable combination. People are rediscovering that wool competes very successfully even with the latest high tech man-made fibres.