Share the adventure. Osprey want to inspire young people to enjoy the outdoors and the Osprey Youth Series is their way of doing this. Osprey knows by giving children the same level of pack fit and function as their grown-up counterparts that nothing will stop their adventures. Whether you're out camping or backpacking for the weekend, the Ace 50 provides your child with a light-weight fully functional backpack that rivals any adult sized Osprey pack. Osprey understands that children grow more than quickly, that's why they've equipped the Ace with an ultra-adjustable torso and Fit-on-the-Flyhipbelt. The Ace 50 will grow with your child providing them with years of comfort so you don't need to constantly replace their pack. Keeping children cool when they're outdoors is key, that's why the Ace 50 has an AirScapebackpanel with foam ridges for ventilation. It also has a LightWireframe and internal compression to ensure the fit is fine tuned to your child no matter how the Ace is pac