Evoc stage 6l backpack 2l bladderwhen you prefer to keep your cargo to the essentials the stage 6l provides everything you need in a compact lightweight and functional backpack the stage 6l is packed with great features including a 2l hydration bladder this is a versatile pack ideal for a range of cycling activities evocs air flow contact system allows the stage 6l to be positioned in such a way that theres optimal ventilation for the back and shoulders together with a neutral load di