■【Brand Name】
MUUMARJU
■【Product Name】
Heathered Polyester Multi-functional Business Backpack
■【Product Description】
・A multi-functional backpack made of heathered polyester that is rich in storage and can be widely used from business to casual.・The main pocket features a round zipper, allowing it to open wide for easy access to contents. (Fits B4 Size)・The outer pockets are arranged in three tiers: the top tier fits a 500ml plastic bottle, the middle tier fits notebooks and planners, and the bottom tier is convenient for storing wallets and smartphones separately.・The inner storage area also has a round zipper and includes a cushion for safely storing a PC or tablet. (Fits computers up to 260mm in height × 440mm in width × 40mm in thickness)・The back has a tape for securing the bag to a carry-on or suitcase.・The top of the backpack features a sturdy and cushioned handle, allowing it to be used as a handheld business bag.
■【Material】
polyester
■【Country of Origin】
China
■【Size】
[縦] Approximately 47cm / [横] Approximately 29cm / [マチ] Approximately 10cm [持ち手] Approximately 23cm [ショルダー] Approximately 52cm to Approximately 93cm (adjustable) *Size is based on BACKYARD FAMILY flat measurement. There may be slight discrepancies with the actual product and manufacturer stated sizes. Please be aware of this in advance.
■【Weight】
Approximately 770g
■【Capacity】
Approximately 19 liters
■【Cautions】
※Due to the nature of the material, we take great care with dyeing, color fading, and color matching, but color fading and discoloration due to friction, sweat, rain, and water cannot be avoided. ※Do not use volatile solvents such as benzene or thinner. ※Do not pull the handle strongly, overpack, or use with extremely heavy items. ※For synthetic products, avoid contact between resin surfaces and other materials to prevent color transfer. ※Due to the nature of cameras and monitors, there may be color differences between the image and the actual product, so please understand.
※※Notice of Price Change: The price was changed on May 26, 2026.※※
MUUMARJU
■【Product Name】
Heathered Polyester Multi-functional Business Backpack
■【Product Description】
・A multi-functional backpack made of heathered polyester that is rich in storage and can be widely used from business to casual.・The main pocket features a round zipper, allowing it to open wide for easy access to contents. (Fits B4 Size)・The outer pockets are arranged in three tiers: the top tier fits a 500ml plastic bottle, the middle tier fits notebooks and planners, and the bottom tier is convenient for storing wallets and smartphones separately.・The inner storage area also has a round zipper and includes a cushion for safely storing a PC or tablet. (Fits computers up to 260mm in height × 440mm in width × 40mm in thickness)・The back has a tape for securing the bag to a carry-on or suitcase.・The top of the backpack features a sturdy and cushioned handle, allowing it to be used as a handheld business bag.
■【Material】
polyester
■【Country of Origin】
China
■【Size】
[縦] Approximately 47cm / [横] Approximately 29cm / [マチ] Approximately 10cm [持ち手] Approximately 23cm [ショルダー] Approximately 52cm to Approximately 93cm (adjustable) *Size is based on BACKYARD FAMILY flat measurement. There may be slight discrepancies with the actual product and manufacturer stated sizes. Please be aware of this in advance.
■【Weight】
Approximately 770g
■【Capacity】
Approximately 19 liters
■【Cautions】
※Due to the nature of the material, we take great care with dyeing, color fading, and color matching, but color fading and discoloration due to friction, sweat, rain, and water cannot be avoided. ※Do not use volatile solvents such as benzene or thinner. ※Do not pull the handle strongly, overpack, or use with extremely heavy items. ※For synthetic products, avoid contact between resin surfaces and other materials to prevent color transfer. ※Due to the nature of cameras and monitors, there may be color differences between the image and the actual product, so please understand.
※※Notice of Price Change: The price was changed on May 26, 2026.※※
| color | LGY. Light Gray, CGY. Charcoal Gray, BK.black |
|---|---|
| size | Business Backpack/FREE |
| Actual size | Closing: Zipper
Details about the size |
| Material | polyester |
Note
・Depending on your monitor, the colors may appear different.
・Product information is translated using machine translation, which may result in unnatural expressions.


































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