Osprey radial 34 hydration backpackwork hard but commute harder with the radial featuring an airspeed inspired trampoline suspended mesh back system this pack allows for great breathability when commuting in hot and humid conditions the ventilated stretch yoke and load lifters on the harness combined with the elastic hipbelt wing mean that the pack is able to move closely with the body offering extra flexibility and comfort with an integrated kickstand the pack stays upright by itself so