One-size plus cover will be the perfect choice for you, if: - You are just starting using cloth diapers and your baby is aready around 10kg. - You are looking for perfect wool cover to use with our PUPPI fitteds in One Size. The wool cover is sewn from 100% fine merino wool - the finest sheep's wool that is ideal for baby products. Wool cover is an outer part of a cloth diaper which is supposed to keep the moisture of absorbent insert inside the diaper. When it's time to change the baby's nappy - we change the absorbent insert inside the diaper (or the fitted diaper), and we hang the wool cover for airing. It will be ready to use at the next diaper change. Well- thought cut allows proper airflow in the diaper, and ensures that our wool cover will fit on any absorbent insert. Care Instructions: Hand washing using wool shampoo. Ventilate after each use. Detailed information about washing you will find in the leaflet joined to your cover.