I'm looking for a pack that is well ventilated for those of us who do sweat a lot haha. I was looking into the Osprey Volt, however, some reviews came up with people saying 'This pack is not for those who sweat a lot' as it wasn't ventilated. I started eying the Osprey Atmos as it does say that it is ventilated. Does anyone have any personal reviews for them in this aspect? Or would you recommend another pack ventilated? Thanks!