NB (New Born) Size 1: Designed for newborn babies with smaller size, the first few weeks only, 8-12 diapers per day.
Small Size (Size 2): Designed for 8-14 lbs (3-6kgs) of baby weight, it is usually used 2-3 month to jump to use Size M.
Medium size (Size 3): This Medium size used last longer, for baby weight 12-18 lbs (6-9kgs), it can use several months, is the most quantities in the order for some countries, especially for Africa market, they use to buy more M in their order.
Large Size (Size 4): Same as Medium, can use longer, from 6-12 month, it depends on the baby weight, about 16-28 lbs (9-13 kgs), L size always higher absorbent requirement. Some South America market need more of size L compare to other size.
XL size (Size 5): Designed for 22-37 lbs (up to 13 kgs), not much quantities required in the market, due to the baby grow up and more active, some mother will prepare pull up for their baby.