Specification:

1) Steel support inside the backpack to increase the stability and reduce burden.

2) Bottom compartment can be separated or linked with main compartment based on own preference

3) Laptop Compartment

4) Rain Cover Compartment

5) 2 Side Pocket

6) Compression Straps on bottom compartment to allow attachment of extra gear 

7) Side compression straps for reducing pack volume， improve load stability， and also for expand for extra gear.

8) Top Opening for easy access for buried item

9) Water Resistent

10) More durable buckle as compare to normal buckle