Made of Nonwoven. SAP. Breathable PE film. POLYMER ABSORBENT CORE - It adopts a one piece lightweight core structure, which is thinner and more comfortable. So your baby can move freely. CURVED FIT TAILORING - The V-shaped narrow crotch design reduces the friction of the baby's thighs and 360ºcomfortably wraps the little butt, which securely and gently fit the prevent side leakage. BREATHABLE - Breathable micropores release fresh vitality, breathe freely, and keep baby's butt "dry" at all times.