Evoc stage 18l backpackwith plenty of storage space and some great features the stage 18l is a versatile daypack thats ideal for a range of activities from mountain biking to commuting with a ventilation system to keep you comfortable and a brace link carrying system the stage is functional comfortable and adaptable evocs air flow contact system allows the stage to be positioned in such a way that theres optimal ventilation for the back and shoulders together with a neutral load distribu