We looked at all the packs in all the usual baby shops, went with an Osprey poco from a hiking shop. It has the pedigree of a product that has been designed by a company that specialises in making rucksacks: multi-adjustable shoulder, waist and chest straps, plenty of storage, hard wearing. We were comparing a few of the LL packs at the same time in the shop (Cotswold Outdoor) and we felt the Osprey was a more robust pack for our hobbies (that’s not to say people haven’t walked 1,000s of miles in any other baby pack).
One feature I like is the base stand which can be sprung out by hand before lowering the pack and forms a very stable base for the pack. I don’t need to hold the pack when it’s on the ground with junior in it. The sunshade is useful for rain or sun and packs away neatly in a ‘hidden’ compartment. The pack also has easy access side pockets for our water bottles (as well as a camelbak pouch). Also, it has a few karabiner loops and expandable netting pockets. If you’re going out walking you don’t need to carry another backpack!