Gender: Unisex Rain Cover: Included Function: Water-resistant Breathable Bag capacity: 18L Capacity of water bladder: 2L Suitable for: Cycling/running/climbing Backpacks Water temperature: -20 to 50 Celsius Name 1: Tactical backpack,outdoor camping hiking bag Name 2: Waterproof softback,ultralight backpack mens sports bags Name 3: Hunting backpack,backpack mtb Name 4: Hiking bag,tourist urban backpack,tactical shoulder bag Brand Name: Brosailyang os Model Number: B-99 Type: backpack Material: Nylon Function: With Lid Origin: Mainland China Certification: CE is_customized: Yes Choice: yes semi_Choice: yes