Product Specifications] Weight: 4.9 oz (1,400 g) Men Material: Artificial leather External Dimensions: Depth 8.3 x Width 10.6 x Height 13.8 inches (210 x 270 x 350 mm) Inner Dimensions: Depth 4.9 inches (125 x D35 x W 240 x H 260 mm) A4 flat file Hardware: Rose gold plated[Complete Performance] 1. Reinforced processing to prevent deformation, high strength PE box construction, large entrance reinforcement 2. Left and right gusset, shoulder belt and front pocket with 5 functions. 3. Movable back-ring 4. Uses breathable and antibacterial deodorizing fabric. 5. One-touch automatic lock. 6. Total 3 reflective lines on both sides and white reflector for adjusting to your height. The interior is waterproof and water- repellent. Antibacterial