Camelbak mini mule hydration packthe mini m.u.l.e is the ultimate young riders' hydration pack from camelbak that lets them carry the essentials when heading out with their parents.this hydration pack has grownup features such as 1.5 litres of water, a bike tool organiser pocket, zippered compartments for layers and essentials, and reflective strips, all in a package that fits younger riders.the mini m.u.l.e also features a built in whistle for emergencies and adjustable straps, allowing the hydration pack to grow with the kids over the years.featuresmaterial 70d diamond clarus, 210d nylontotal capacity 1.5l 1.5l reservoirbike tool organiser pocketreflective stripsafety flasher loopsternum strap whistleharness kids fit lightweight mesh with slider sternum strapback panel slit meshtorso length 30cm1 4 turn easy open close caplightweight fillportdryer armscentre baffling and low profile designpatented big bite valvehydroguard technologypureflow tubeeasy to clean wide mouth openingdesigned to carry snack, sunscreen, phone, cash, keyscamelbak got your bak guarantee if camelbak built it, camelbak will bak it with their lifetime guaranteeweight 240g pack onlybuy camelbak accessories from chain reaction cycles, the world's largest online bike store.