Camel Bak&8217;s minimalist 1.5 litre system is the perfect opportunity to try out a back mounted hydration system from the market leader. As popular with runners as with cyclists thanks to its short profile.* Externally accessible reservoir* Breathable back panel* Zipped pocket for essentials* Front & rear reflectivity Weight exc reservoir: 160g Hydration:1.5 litres Antidote Max total capacity: essentials only