30L Backpack, 500D PVC Specification 1) Fabric and trims comply with ROHS, REACH, Prop65. 2) Front Pocket zipper: Water resistance only. 3) Rolltop: 3-4 times to make sure its waterproof. 4) Rolltop waterproof Level is IPX6, keep importation things inside of rolltop compartment. 5) Size: 34*16*52cm ( Rolled size ), 30L. 6) Back Panel Comfortable airflow system. 7) Single Weight: 1.08Kg 8) Keep your bag away from sharp goods. 9) Inside 1xzip pocket, front elastic cargo compartment