I started a sock using 100% bamboo yarn and frogged it and made a scarf instead. I find bamboo very limp. I like socks to stay up and not slide down around my ankles and the bamboo just had no elasticity. It was incredibly soft and pettable and it made a lovely scarf that I gave to my sister.
"Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it's the only thing that ever has."--Margaret Mead