Wool is a comfortable and versatile fabric, warm in the winter and cool in the sumer. In addition, wool fabric is elastic, drapes well, and repels water droplets, however it absorbs water vapour. Nonetheless, wool can aborb up to 30% of its weight in water without feeling damp. The fabric resists wrinkling, returning to its natural shape when relaxed. It stretches by about a third when dry, and up to about half its length when wet. It resists static electricity as well, except in a very dry air. Wool will discolor and deteriorate under prolonged exposure to sunlight.