The presence of mechanical anisotropy in β-keratin composite was analyzed. Cutting tests on the samples of keratin were carried out. The molecular structures of α- and β-keratin were compared. Despite the differences in the molecular structures of the two types of keratins, the toughness of the two appeared to be quite similar. The presence of multi-directionality in feather keratin was identified qualitatively. Most keratin molecules were oriented predominantly axially.