[Masterpiece] Backpack Business Backpack Progress (Black) Medium Size

The main material is a special nylon bright yarn of 100 denier for both the warp and weft, woven with 3 warp threads and 2 weft threads in a left-hand twill weave – the reverse of the usual right-hand twill. A 0.15mm PVC coating is applied to the back of the nylon twill to provide stiffness and water resistance. Left-hand twill, compared to right-hand twill, has slightly weaker weaving tension, resulting in a unique luster and softness to the fabric, and a flatter appearance with less surface unevenness. The leather used as an accent is based on cow leather tanned using a combination method, then oiled and finished with dye to enhance its suppleness and color depth. It is then subjected to milling processing (rubbing the leather to create a pebble grain and shine) to achieve a unique texture. The main zipper uses a water-repellent YKK zipper with a water-repellent tape, and the front portion uses a YKK AquaGuard zipper with water-stopping treatment. It is equipped with convenient pockets for storing laptops and tablets, and features a simple design suitable for both business and casual scenes. The body uses a special nylon twill with a PVC coating on the back, making it water-resistant and usable in various situations.

・Color/Black, Navy. Item number/02391 [master-piece] Progress ・Main material/100 denier nylon twill (PVC coated) / Oiled cow leather (combination tanned) ・Size/W28・H41.5・D8.5cm. Country of origin/made in Japan ・Specifications/Compatible with B4 size・Casual・Business scene・A square backpack that also looks good for commuting by bicycle. The main compartment has a PC pocket × 1 and mesh pockets × 2. There is a zipper pocket × 1 on the front surface (A4 size) and a zipper pocket × 1 on the lower front surface (B5 size). A zipper pocket × 1 at the bottom back of the body is convenient for storing valuables. Weight approximately 690g, with 4 bottom studs. ・Attention/If the main fabric is left wet for a long period of time, the coating on the back may peel off or deteriorate, so be sure to dry it before storing. Please note that it is not completely waterproof, and water may enter through pinholes in the zipper and seams. The leather is finished with a large amount of dye to preserve the original texture of the leather without using any pigments, so there may be slight color variations. Also, due to the nature of the bare leather, discoloration cannot be avoided. Please be aware that getting wet with rain or water may cause stains or discoloration, so remove any moisture immediately if it gets wet.

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device's requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.