This document discusses the key features and essential items commonly found in baby diaper bags. It notes that diaper bags come in various sizes and designs to hold diapers, wipes, bottles, snacks, and other baby essentials. The document also lists examples of items that parents typically pack, such as diapers, wipes, creams, clothes, toys, and sanitization products. Additionally, it recommends regularly checking and restocking the diaper bag based on the baby's needs and age.