Pampers Baby-Dry have Micro Pearls that absorb up to 30 times their weight, and lock in wetness. For up to 12 hours of overnight dryness, helping your baby get the sleep they need for a giggly morning. One pack is equal to one life-saving vaccine against new-born tetanus Alongside UNICEF and parents like you, over the last ten years Pampers has helped eliminate new-born tetanus in 15 countries around the world. On our campaigns tenth birthday, our One pack is equal to one vaccine campaign continues to protect babies at risk of new-born tetanus around the world. For every special UNICEF pack you buy we will donate one life-saving vaccine. One pack is equal to one vaccine.