Wool nappy covers are incredibly reliable and breathable.  
 
They work well over fitted and one size absorbent nappies - such as the one size Anavy nappy or little lamb bamboo or cotton nappies.
 
Wool needs lanolising to ensure its waterproof properties but you can use it for up to a month inbetween washing.  Wool has self cleaning properties so you can just air it inbetween wears.
 
Full washing and lanolising guide included. See our lanolin tin to go with this wrap.
 
Sizing
The cover fits babies from approx. 5 kg to 15 kg over most diapers.