Bamboo fabric helps wearers keep pleasantly dry feet thanks to the hollow structure of the fibres which makes it super-absorbent. This means that the material effectively wicks moisture away from the skin. Bamboo is very breathable and far better in this respect than cotton or wool socks. It's just the fact that bamboo is a hard, spiky plant, while bamboo fabrics are soft and durable—which makes their production seem impressively futuristic and therefore environmentally friendly.