A very practical beast of burden (& comfy too)
My 8yr old now uses one for school trips, swimming (beats a dripping carrier bag) & as her own general use backpack, compared to novelty packs often bought for children this cinches tight, so adjusts round all chest sizes (& munchkins) providing stability on a trail for smaller users.
Durable, repairable (via iron on patches, should you have a calamitous moment) & easy access via it's wide mouth top opener.
Shrugs off rain (unlike my old cycle pack) keeping my lunch, electronics & a change of clothes in tip top condition!
Bungee useful for hanging a layer on in a hurry.
Effective & well priced, I anticipate many years of use from it, so far it's been canoeing, & canyoning as well as more sedate past-times.
Capacity & weight should satisfy those in competition as it packs down enough for a typical ultra-light expedition.