Ainu clothing is generally made of elm bark, and that worn by men and women is much alike. The bark is stripped from the tree in spring, when it is full of sap. It is soaked in water to separate the inner and outer bark. Fibres are secured from the inner bark, which can be woven like thread into cloth. The men’s garments of this fibre cloth are adorned with patterns embroidered with colored threads; those of women are generally plain.