Premium nappies designed to protect babies between 9 and 14 kg The 25 premium protective nappies PAMPERS size 4 9-14 kg are designed to offer very high protection for children weighing between 9 and 14 kg. The diaper has a soft, micro-ventilated veil with a super absorbent core that captures liquids. It is a gentle treatment with a double anti-leak barrier. | In that case I should use PAMPERS Premium protection 25 nappies size 4 9-14kg? Diapers with a urine indicator that turns blue to indicate whether or not a diaper change is needed.