Stay hydrated without slowing down your ride thanks to the hands-free, magnetic ReTrakt hose return. The included HydraPak 1.75-liter hydration bladder features a bite valve to prevent leakage and a sliding closure for easy cleaning. The low-profile design provides enough storage for extra clothing and other small items. The age-appropriate design with zippered pockets allows for safe storage of all personal items. This backpack is designed for younger cyclists from 8-12 years with a correspondingly smaller back (optimal fit for a height of 127-162cm). Lightweight materials and a mesh back panel combine to keep you comfortable in all temperatures.