When you buy something using the retail links in our stories, we may earn a small commission. Outside does not accept money for editorial gear reviews. Read more about our policy. Built for big boys and girls (8 to 12 years old), the Tarn Hydro is a straightforward daypack with a wide opening to the main compartment and a comfy padded back panel with an air-flow channel. The stretchy mesh side pockets are great for items your kids want to access easily or an extra bottle if they want more water than the built-in, 1.5-liter HydraPak reservoir can fit. The 40-liter Icarus is designed for overnight or quick weekend trips into the backcountry, and it comes loaded with the same features your favorite adult packs have: a hydration sleeve, a trekking-pole attachment, a rain cover, a separate slot for a sleeping bag, and an exterior stash pocket. The VersaFit suspension system has four inches of adjustment, so the Icarus can grow with your child. This Deuter pack is for when you introduce your children to technical pursuits, like ski touring and rock climbing. It has 22 liters of room in a top-loading compartment, with space for a hydration bladder, but is also outfitted with ice-ax str...