* Capacity is roughly 52 liters 
* Suggested comfortable carrying capacity: 23kg
* Weight
   - Backpack:810g
   - Vertical aluminum stays:114g
   - Lateral aluminum stays:62g
    - Mpad: 128g
* Size: 
   Regular: Torsos 18" to 21"/ hipbelt 28" to 34"
   Small: Torsos 16" to 19"/ hipbelt 25" to 31"
* Whistle device on Sternum Strap
* Compression System at side and top
* Extended drawstring closure design, can easily adjust the capacity as needed
* Exterior front/side mesh pockets 
* Strap organizer 

Accessories in the package: 
* Removable sternum strap 
* Removable folded back pad, can be used as sleeping pad
* Removable figure 井 frame system