Polarn o Pyret Soft shell mudsuit, 98cm. Label says 1.5 - 2 years, my experience is that it is better for 2-3 years. Colour is a bit uneven but no holes, waterproof. Would suit mud play or even snow play with layers underneath but it's not a snowsuit.
EDIT I made a mistake in the title, it's 2-3 years not 3-4