My son is 3 and has bad asthma. He is big for his age(looks about 4-5yrs). I am getting REALLY ready for a new buggy, but could do with one designed for a bigger child. Although at his age you would not normally need a buggie there are plenty of times he just can't walk any distance and I just can't carry him. If you have any thoughts or recomendations as regards bigger buggies do get in touch. Most are designed for a baby of 6 mths.