Karrimor refuel 2 plus 2 hydration pack the refuel 22 comes complete with 2 litre hydrapak bladder the rct back system keeps the bag compressed and under control when running biking or skiing small 05 litre stash pocket and external helmet holder hydration pack capacity 205l back system refuel chassis technology contact mesh coolmesh pockets zip access to main compartment hydration complete with hydropak 2l bladder karrimor branding fabric ks p450 weig