Product design and sourcing details
The 21012 reference shows a rectangular backpack with separate upper and lower front zip sections and a top carry handle. Use these views to review everyday work organization and branding placement.
OMASKA CUSTOM BACKPACK FACTORY 21012 HIGH QUALITY OEM ODM CUSTOMIZE LOGO BUSINESS STYLE MULTI FUNCTIONAL BIG CAPACITY WATERPROOF WITH USB CHARGING BACKPACK FACTORY
Is a 20l backpack big enough for school?
A school backpack with a capacity between 15 and 20 liters is large enough. These backpacks are compact, but often have extra compartments to store a calculator, pens, and keys. There are also plenty of small backpacks with a laptop and tablet compartment.
What is a good size for a school backpack?
21 to 30 liters A school backpack of 21 to 30 liters is suitable for you. This is the most common size for backpacks. The bag has enough space, but does not exceed the required size. Most school backpacks have several small pockets.

What is considered a small backpack?
The main defining characteristic of a personal item is that it should be able to fit under the seat in front. Some backpacks can fit under the seat, so smaller backpacks can often be considered a personal item. … Backpacks under 18 x 14 x 8 inches are considered personal items.
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| Front | Back | Micro side |
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| Side | D.grey | Black |
Trade terms
| Usage | Travel/Laptop/Daily/Business | Product Packing | (1)PP bag+carton(2)Can be customized |
| Pricing Term | EXW, FOB, CNF,CIF, DDU, etc | Payment Terms | T/T, Western Union, L/C |
| Port of Loading | TIANJIN, CHINA | Shipment Details | By sea/air/land/express |
| Sample Lead Time | 1.common backpacks:3-9 days | Production Lead Time | 500-1000 : 20-25 days |
| 1K-5K: 25-35 days | |||
| 5K-30K: 35-45 days | |||
| 2.complicated backpacks: 9-14days | >30K: more than 45 days | ||
| complicated backpacks:be discussed separately |
1) Top 10 R&D oriented manufacturer of intelligent backpacks
2) 21 years manufacturer dedicated to developing intelligent backpacks
3) Small MOQ to support new clients
4) fast delivery ASAP
OMASKA BRAND INTRODUCTION
Sampling and bulk-order planning
Send the required quantity, destination market, logo artwork and packaging brief to our factory. Minimum order quantities and prices depend on the selected construction, materials and customization.
Confirm the sample and delivery schedule
Sample timing and bulk-production lead time are confirmed after the specification, material availability and order quantity have been reviewed. Approve the sample and written production schedule before placing the bulk order.
Agree on inspection and after-sales terms
Confirm inspection criteria, packaging, shipment arrangements and any warranty or replacement terms in the written order. These terms are agreed for the specific product and order.
See our order management and support guide and buyer FAQ, or send a product inquiry.













