In textile form, bamboo retains many of the properties it has as a plant. Bamboo is highly water absorbent, able to take up three times its weight in water.
In bamboo fabric, this translates to an excellent wicking ability that will pull moisture away from the skin so that it can evaporate.
For this reason, clothing made of bamboo fiber is often worn next to the skin. It also explains why bamboo is the favoured choice of nappy makers and childrens wear manufacturers.