knapsack
1.waterproof 600D and stick PVC
2. material : 600D
3.good price with good quality.
4.OEM is available.

knapsack
 1.  computer inside lattice can let go ask 12.1 "to 15.4" computer and A4 size file
  2. small lattice can put small equipped with
  3. can set-up length aglet
  4. E nvironmental protection material plastic deduction.

  5.  more details as follow: