Size 1 fits babies from around 7-20lbs/3- 9kgs which is generally the age range newborn to nine months.
Size 2 fits babies from around 20-38lbs/9-17kgs which should fit babies from about seven months to potty training.
Little Lamb bamboo nappies are also available in size 3 which fits from 35lbs/16kgs.
Caring for this nappy is simple. Always use the dry bucket system (this means no soaking, no bleaching- just pop any poo down the loo then fold over the Velcro onto the laundry tabs and pop it into the bucket with the lid on to prevent any pong) then when you have a days worth of nappies (or two if you have enough), chuck it all into the washing machine with half a scoop of powder. When your machine has done all the hard work for you dry the nappies either on the line or in the dryer.
Wash at 40° and tumble dry on cool