FreeFloat ultralight suspension with flex panels that move with the natural movements of your body , Ventilated mesh backpanel with Polygiene Stays Fresh Technology (an odor control fabric treatment that inhibits the growth of odor-causing) , ComfortCradle hipbelt with 3D construction for hotspot free, body-hugging comfort , Oversized zippered hipbelt pockets with enough space to fit cell phones and trail essentials , Ultralight, perimeter aluminum frame and fiberglass anti-barreling cross-stay for superior lightweight load capacity