MaxMaxi 30L 3P Comfortable 600D Nylon Waterproof Outdoor Trekking Tactical Camping Backpack (Green) High density WATERPROOF Polyester fabric 600D Oxford cloth is wearable and high quality (Two styles for your choice: 30L 3P/ 55L 3P) Feature dustproof, waterproof and corrosion resistant functions Large capacity design is suitable for several days' walking trip High strength shoulder straps are reliable. All buckles can lock stably With ergonomic design, the straps and back are permeable and soft. It is ideal for wild adventure, tactical use, outdoor sports, etc