We are going on holiday soon and plan to do some walking up and down steep hills. It'll be hot too, although we will only walk in early morning/ evening. We have a 2 year old and though he'll be able to walk a bit of the way he'll get tired soon, of course. Do you think a backpack would be the best option in this case and is there a particular brand that people would recommend? It really needs to have some sort of hood/ sun protection because I can't be sure he'll keep his hat on, and it would ideally be as light as possible. thanks :) Toddler is an average sort of weight and height for his age, a bit smaller than average if anything.