6 newborn alvababy pocket diapers with 12 newborn size microfiber inserts. 1 bonus thirsties newborn AIO Suitable for babies less than 12 pounds (a rough guide for reference only) Length of Diaper: 13” in length X 10.25” in width. One size fits all– you can adjust the diaper to your desired size (S,M or L) by snapping onto different rows of buttons on the nappy. Hip snaps and crossover snaps to prevent “wing droop”. Washable, waterproof and breathable. Comfortable elastic legging area to prevent leaking Diaper with pocket to hold the insert.