Which diaper size should I choose for my baby? T1: 2–4 kg (0–2 months) T2: 3–5 kg (0–3 months) T3: 4–8 kg (3–6 months) T4: 7–11 kg (6–18 months) T4+: 7–11 kg (6–18 months) T5: 10–14 kg (18+ months)