i love using the bamboo batts they are soft, fluffy, needle beautifully, do not shrink, are hypo-allergenic and come from sustainable resources. around here they seem to be more expensive than the wool ones though and when it comes right down to it, i will choose wool first every time...just me...but i seem to use different batts all the time, and the bamboo's are on my list of love working with...when it 'fits' my project i get it.