These are made from two layers of charcoal-impregnated microfibre fleece fleece on the outside and three layers of bamboo in the middle. The bamboo layers are superabsorbent and the charcoal is said to be anti-pong and anti-bacterial. They are slimmer than the standard inserts that come with Baba+Boo nappies but just as absorbent - maybe more so. They are recommended for heavy wetters and at any time when your baby's urine is stronger and smellier than usual (if teething for example). They're not as absorbent as hemp inserts.
Supplied as a pack of two (with ribbon and everything).