For those looking to buy sewing material for clothing- it's all 100% polyester. Just to clarify…read morefurther, when I say "it's all" I specifically mean I looked at each label for each section on both floors and it's all at least 80% or more polyester with some kind of additional blend. The notions are ok but button options are limited, thread colors were low, and there doesn't appear to be any boning available for dress making.