Wool is a natural protein fibre usually sourced from sheep or other animals. It can be commonly found in knitwear, coats and other winter clothes. There are different types of wool, including lambswool, merino wool, cashmere wool, mohair wool and alpaca wool, of which the quality varies depending on the breed and its fineness.
Biodegradable, very warm, durable, breathable, water repellent, absorbent, wrinkle-resistant, odor-resistant
More expensive, shrinks, might irritate skin, might pill, requires special care
Wool is considered one of most sustainable fibres, though there is a concern about animal welfare during the making process, that whether or not the animals are being humanely cared for. However, this issue can be avoided by choosing organic wool.
More sustainable alternatives
Recycled wool, organic wool