Bone straight and straight hair are quite similar on the hair extension product side, except for the main difference in textures which creates a different appearance for bone straight. Unlike completely natural straight hair, the smooth straightness of this product is mainly due to the treatment and processing which results in a particularly long lasting straightness. Bone straight hair has been heat processed and is therefore very suitable for humid climates as the hair will not frizz due to humidity. The hair has a silky, soft, and shiny texture. Curly patterns will have a lower longevity rate, due to the aforementioned reasons, but for that perfect straight look, this hair is for you. It is recommended to straighten the hair with your straightener after washing to ensure its original bone straight texture.