Atmos AG 50 Backpack Cinnabar Red - SM. Flaunting the innovative Anti-Gravity Suspension system, the Atmos AG Series delivers supreme comfort and ventilation. This 3D contoured suspension literally allows the wearer to move as if they don't have a pack on - true antii-gravity realized. Combined with custom-fit capability and a full-feature set, the Atmos AG sets a new standard in ventilated backpacking.