The Roof R06 Bamboo motorcycle helmet reminds me of a parqay floor design. There must be some strength behind such a design because the shell of this helmet is made out of bamboo fibers yet, passes European safety regulations. This style is a limited edition and will cost eco-bikers around $380. Now it can finally make sense when people rap their skulls when using the expression, "knock on wood."
Bamboo has gotten quite a bit of mention on Trend Hunter in the last months: