Baby backpack for country walks

[emoo777]

We are going on holiday soon and I want to buy a backpack that will hold my 1yo, as well as general stuff we need to take walking. As I will be about 6 months pregnant at the time I anticipate my husband doing most of the carrying.
Which backpacks would be best for this kind of use, including a decent storage capacity? I wondered if anyone had tried the Phil and Teds Metro carrier? I like the fact that it has a sun canopy.

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MNHQ

[sazzleevans]

The ergo has an additional backpack sort of thing you can add for carrying extra stuff.

Sarah

[Shipscat]

I've got the Little Life Explorer, which has a sunshade and optional extra wind/rain cover. It also has quite a large space built-in for carrying stuff, as well as a small detachable rucksack
Both me and DH find it comfy to carry.