The Osprey Poco AG Child Carrier has come with me on many hikes. My daughter is a year and a half and she loves the outdoors. We first bought the pack when she grew out of the soft front carrier. This Pack is adjustable and with a good six inches of adjustment, My daughter has also fit in the pack this whole time. My wife, Donna, and I have a wide range of fitting the backpack and we easily take turns wearing the pack on our hikes. I am 6’1″ tall and find this backpack fits me well. The weight contours nicely to my body and it feels snug. The pack moves well with me when I go uphill, downhill, bending and crawling. She is strapped in, so there is no worry about her falling out. she really seems to enjoy riding in the pack. I have noticed her giggling as Donna brings the pack up to her shoulders and she is strapped in. The storage carries quite a lot, even though Osprey has manufactured the Osprey Poco AG Plus which has a larger compartment at the bottom. I have had no difficulty carrying what I need on a hike with this pack. Donna has taken this pack on a multi-day hike and instead of worrying about fitting everything into the backpack, she ended up wearing another pack on her front.