1. Large capacity to meet your daily needs, 3 front pockets, 1 rear pocket, and 1 hidden tote for easy access. 2. Concealed hand-hd design, the handbag is changed into a liner bag for one second, adapting to different occasions. Rivet stitching is reinforced and the handle is sturdy. 3. Polter anti-tear fabric, wear-resistant, environmentally friendly, waterproof, dicate touch, protect your computer from rain. 4. Soft and comfortable ffy inner lining, shockproof and anti-fall, fully protect your love machine. 5. Two-way zipper, smooth and not stuck. 6. Back-to-back dual-use design, hand-hd, one-shoulder, crossbody, premise, back a variety of back methods to meet your individual needs. Specifications: 1. Fabric: polter. 2. Lining: ff. 3. Capacity: mobile phones, magazines, charging treasures, laptops, umbrlas, etc. 4. Function: waterproof, breathable, wear-resistant, lightening and shockproof. 5. Construction: 3 front pockets, 1 rear pocket, 1 hidden tote bag, and a luggage trolley strap. 6. External dimensions: 36x27x3.0cm. 7. Internal dimensions: 34.5x25.5x2.5cm. 8. Weight: 350g.