These bamboo inserts are made of 4 layers of bamboo terry fabric and are the default insert which comes with every nappy purchased.
Pure bamboo inserts are amazingly absorbent and can be used by itself or in combination with a microfibre insert. It is recommended for bamboo to be slotted under the microfibre insert.
Tip: Soak the insert for 24 hours in water before first use. It may take up to 10 washes to reach full absorbency.