Washable super-soft fleece liners which allow liquid to pass through to the absorbent part of the nappy and keep the material next to your baby's bum nice and soft and dry. Added bonus is that they keep your nappies cleaner too. These are washable reusable nappy liners. Sold in packs of 5.
If you would like to try the Baba and Boo disposable liners you can find them here
If you are on the lookout for a wetbag for your wet nappies you can find some here