Alva Baby Diaper Covers Bamboo Fitted Cloth Diapers 80% Bamboo 4pc Set. Overall good condition and clean. See photos for sizing as tags are very faded 80% bamboo and 20% polyester Sewn-in 3-layer bamboo insert provides enough absorbency even for heavy wetters Sturdy polyformaldehyde snap closures- easy for parents, not-so-easy for curious toddlers! Simple easy snap on design sure to be appreciated by moms, dads and grandparents alike. Overlapping wings to ensure a good fit for skinny and chubby babies alike