Disposable Bamboo Liners: This is a roll of 100 sheets -similar to a roll of thin toilet paper- that one simply tears off and lay on top of the nappy, as the last step before fitting the nappy. If there is a poo, simply lift out the liner, and dispose of it - either throw it away, put in a compost heap, or flush it. But remember that whilst bamboo liners are biodegradable, this doesn't happen instantaneously, so there is always the potential to block old plumbing pipes. Also since the liners are absorbent, and therefore feel wet once a wee has been made, the usual "StayDry" properties of a pocket/sleeve are lost. We suggest not using a disposable liner at every nappy change. Moms usually start noticing a bit of a routine - for example there is usually a bowel movement first thing in the morning straight after breakfast - pop in a liner for those nappies. In between consider skipping using a liner or use a washable fleece liner (you'd also end up saving quite a bit on not using so many liners !). The worst case scenario is nasty skid mark that will either completely fade quite quickly in the sun, or can be scrubbed out using a bar of sunlight soap. Disposable liners can often survive one wash (assuming it was only wee nappy) and be in a reasonable enough condition to be used one more time.