Outer Layer: The outer layer of a baby diaper is usually made of a non-woven material, such as polypropylene or polyester. This layer is soft, breathable, and helps prevent leaks by acting as a barrier against moisture.

Outer Layer: The outer layer of a baby diaper is usually made of a non-woven material, such as polypropylene or polyester. This layer is soft, breathable, and helps prevent leaks by acting as a barrier against moisture.

Inner Layer: The inner layer, also known as the top sheet or the stay-dry layer, is in direct contact with the baby's skin. It is often made of a hydrophobic non-woven material, such as polypropylene or polyester, which helps keep the baby's skin dry by allowing urine to pass through to the absorbent core while preventing moisture from seeping back to the skin.

Elastic Components: Diapers incorporate elastic materials, such as elastane or rubber, in various parts to ensure a snug and comfortable fit around the baby's legs and waist. Elastic gathers at the legs help prevent leaks, while waistband elastic provides flexibility and keeps the diaper in place.

Fastening Mechanism: Most baby diapers feature resealable fastening tabs or adhesive tapes on either side, allowing for easy adjustment and secure closure. These tabs are usually made of a combination of plastic and adhesive materials.

Breathability: Baby diapers often incorporate breathable materials or perforations to enhance air circulation and minimize the risk of diaper rash. This feature helps keep the baby's skin dry and comfortable.

Wetness Indicator: Some diapers include a wetness indicator strip that changes color when the diaper is wet. This strip is typically made of a chemical compound that reacts to moisture, providing a visual cue to caregivers when it's time to change the diaper.

Wetness Indicator: Some diapers include a wetness indicator strip that changes color when the diaper is wet. This strip is typically made of a chemical compound that reacts to moisture, providing a visual cue to caregivers when it's time to change the diaper.