: 80L
black with red (the color sometimes change, according to prevail in kind) 
Fabric: 600D polyester canvas (green non-toxic, no odor)
Structure:
         1. Built-in "TT" shaped tube aluminum frame - scattered back weight, load-bearing ability, strong backpack, and can disassemble
         2. After the super-generous mesh sponge pad and strap, plus belt, giving you a full range of comfort and protection
         3. Breathable mesh sponge width, enabling the back overhead ventilation and heat dissipation back, take the road more hot days and are not afraid
         4. Weight balance waist belt, weight sharing, balance center of gravity, solid pack, to protect the waist
         5. Scapegoat 5L, scalable ad hoc appearance and debris with compressed with compression size backpack, travel more comfortable people of different heights can adjust the back of comfort.
         6. Night vision fluorescent spots with **** for night
         7. Bilateral mesh water bottle pockets, upper and lower outsourcing, there are multi-function pocket, conveniently placed on different items
         8. Peripherals with multiple binding points and binding can be bundled with tents, sleeping bags, damp proof mat ... more **** point, all you need to have hung it at any time, get convenient, no need to open the package