Morning girls, do any of you use a baby backpack for hiking? We're starting to investigate these now, as our LO will soon be big enough to go in one. Lots of choice out there, so am looking for any pointers. We used to do a lot of hiking pre-baby and we hope to start again this summer, as LO will be 6+ months by then. Need a backpack that will keep LO and us comfy for long-ish days (say 6-hr hikes), suitable for all weathers and all terrains, and ideally with some space for picnic, nappy, etc.