This pack has grownup features—1.5 liters of water a bike tool organizer pocket & zippered compartments for layers & essentials— in a package that fits younger explorers. We’ve also added reflective strips & a safety whistle to make kids easy to spot on the trail. FEATURES• The brand new Crux delivers 20% more water per sip with an ergonomic handle for easier refilling & an on/off lever that makes it easy to prevent leaks.• Breathable air mesh back panel for a lightweight comfortable fit• Reflective accents for visibility in low-light environments• Stretch overflow storage compartment lets you easily stash a rain shell or extra layer• Safety whistle built into sternum strap SPECIFICATIONSCOLLECTION: Bike ACTIVITY: Cycling USER: Youth HYDRATION CAPACITY: 1.5L/50 fl oz HYDRATION TYPE: CRUX™ Reservoir with Standard Exit Port BPA/BPS/BPF FREE: Yes QUICK LINK DISCONNECT: No GEAR CAPACITY: 1.5L/50 cu in PACK WEIGHT: 210 g/0 lb 7 oz DIMENSIONS: 35.5 x 19 x 19.5 cm / 14 x 7.5 x 7.7 in FITS TORSO: 30-40 cm/12-16 in BACK PANEL: Padded Mesh WAIST BELT: N/ANUMBER OF EXTERIOR POCKETS: 3