The Camelbak Kids Mini Mule Hydration Pack can store 1.5 liters of water, features a bike tool organizer pocket and contains zippered compartments for layers and essentials - all in a package that fits younger explorers. Camelbak also added reflective strips and a safety whistle to make kids easy to spot on the trail. Camelbak Kids Mini Mule Hydration Pack Features The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and 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 Camelbak Kids Mini Mule Hydration Pack Specifications 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/a Number of exterior pockets: 3