https://live.staticflickr.com/65535/48640874836_80d72f096a_o_d.jpg Back method: oblique / side back Material: natural plant tanned leather, PVC synthetic leather, special dragon (inner layer) Size: L19.5 x W15 x H7cm Weight: 289.4g Strap length: 67-127cm Number of inner bags: 3 Number of outer bags: 1 Can be installed size: less than A4 Note: The color of the product image file will be slightly different depending on the setting of the computer screen. Please refer to the actual product color. Precautions: 1. PVC leather cleaning and maintenance methods: wipe with a clean cloth with water and wipe dry to avoid soaking and washing. 2. If the surface is contaminated with oily stains, wipe and dry with water or some water-based detergent (such as soap, salad, etc.) to avoid soaking and washing. 3. If it is heavy oil, do not use alcohol and strong solvent cleaner (including toluene, pine perfume, etc.), use solvent-free detergent (such as environmentally friendly oil), before the corner of the bag Wipe the area with no obvious problems, then wipe the dirty parts without any problem, and wipe the residual detergent with a damp cloth immediately after cleaning.