Burton Rider's Pack (17 L)
Here's what other sites are saying:
The Burton Kids' Riders' Backpack is stylish enough for city-living and tough enough to handle mile after mile of backcountry roughing it. The soft, ergonomic shoulder harness and back panel makes the load comfortable to carry. On top of this, there's plenty of dedicated organization pockets keep your stuff safe, easy to find, and easy to get to. The removable waist belt lets you drop a little weight when your little one doesn't need the waist belt's added support. And, of course, the Rider's pack is hydration-compatible. So you'll be able to keep churning out the miles without your kid drying up.