1)highly breathable top sheet. 2)super absorbent polymer fluff layer. 3)ADL layer &velcro tape. 4)wetness indicator. 1) Cotton non-woven fabric as surface material to leak liquid quickly, natural soft, make baby more comfortable2) Legcuff design to prevent side leakage.3) With SAP, fluff pulp to absorb the liquid instantly and effectively.4) With ADL can absorb urine and keep the surface dry.5) ...