as labeled from louet-: 60% 28.5 micron wool 20% Mohair 20% rayon from bamboo Rayon from Bamboo top is manufactured using new cutting edge bioengineering technologies. This Top is made from the fibers of the bamboo plant, a grass farmed commercially throughout Asia. Straightforward to spin, this fiber has a beautiful shine and produces a stunning yarn with excellent body. amazing top roving,this is first quality roving but in mill end lengths which mean that not every bag contain one continuous strand. This is wonderful for spinning, stripping, knitting and both warm water and dry needle felting. this is sold here in 2 ounce batches. want more then 2 ounces just change the qty, enjoy !