Features:1. Large-capacity expandable design: Size about 30*21*12CM, can store raincoat, mobile phone, wallet, earphone, water bottle, gloves and other personal items, bottom fan-shaped expansion compartment design, which greatly increases the capacity to accommodate various life needs items during the journey.2. High-quality material: Made of 1200D water-repellent Oxford cloth + detachable rain cover + water-repellent zipper, which can effectively block rainwater penetration, isolate rainwater from