The Osprey HydraJet 12L is a high-fidelity technical pack scaled for children aged 4 to 12. Unlike many youth models, it uses 210D nylon, which offers the same tensile strength found in adult daypacks. The harness system is specifically narrowed to fit smaller chests and prevent nerve impingement. It includes a dedicated 1.5L Hydraulics LT reservoir with a baffled design to help keep the center of gravity stable by reducing water sloshing.
The AirScape backpanel uses ridge-molded foam to provide genuine airflow, which is helpful during long summer hikes. Parents should assist younger children with the "slide-seal" top of the reservoir to ensure it is fully closed before use. The dual stretch-mesh side pockets and front bungee system provide extra spots for a light layer or a small snack, making the 12L volume feel very efficient.
The "All Mighty Guarantee" provides long-term value, as the pack is built to be repaired rather than replaced.
If you are looking for a simpler, ultra-lightweight pack for quick trips, the Ivygreen Little Kids Daypack is a great entry-level choice.
Explore additional high-quality hiking and carrying gear in our hydration-pack style backpacks section.
