Why ZhiWei

Your Reliable Bag Factory — From Sample to Scale

88+ skilled workers, 100% in-house production, zero outsourced steps. Here's why 30+ countries trust us.

MOQ Starting at 300 PiecesTest new products without tying up cash — prove market demand first, then scale as your sales grow.
7–10-Day Sample TurnaroundGet production-accurate samples in 7–10 days — validate fit, materials, and build quality before committing to bulk.
100% Pre-Shipment InspectionEvery unit in every order is checked against your approved sample — so bulk always matches what you signed off on.
Full OEM & ODM CustomizationStructure, materials, color, hardware, printing — every element is customizable to your brand's specification.
BSCI ISO 9001 GRS

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Backpacks

Choose for generic, hiking, school, sling or hydration backpack content when no more specific backpack tag applies.

Sleeping bag packed low inside a hiking backpack beside a sealed dry sack
2026年7月15日

How to Attach Sleeping Bag to Backpack the Right Way

Learn how to attach a sleeping bag to a backpack using approved straps, lids, loops, dry sacks, backup restraints, and safe load checks….

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Backpack fabric and iron-on patch materials being checked before heat application
2026年7月14日

How To Iron On Patches On Backpack: A Step-By-Step Guide

Learn how to iron on patches on a backpack safely by checking fabric, backing, tools, placement, heat instructions, cooling, washing, and repairs….

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Three everyday backpacks showing compact standard and larger capacity profiles

Standard Backpack Size Guide for Everyday Use

Compare standard backpack sizes in liters and inches for work, school, laptops, travel, fit, sports, and custom OEM product development….

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20 liter backpack shown beside a ruler and everyday carry items for scale
2026年7月13日

How Big Is a 20L Backpack? Visual Size Guide

See how big a 20L backpack is, typical dimensions, what fits inside, and how it works for travel, school, laptops, hiking, work, and the gym….

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Hiker locating torso measurement landmarks for backpack fitting
2026年7月11日

How to Measure Torso for Backpack Fit

Learn how to measure torso for backpack fit from C7 to the iliac crest, measure your hip belt, avoid sizing mistakes, and test the final fit….

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Kindergarten-size backpacks shown beside common school supplies

What Size Backpack for Kindergarten Is Best?

Learn what size backpack for kindergarten fits a child, folders, lunch, and school supplies, plus practical guidance for parents and B2B buyers….

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Close-up of a backpack zipper slider and teeth before repair
2026年7月10日

How to Fix a Zipper on a Backpack: Repair Guide

Diagnose and repair a stuck, splitting, or off-track backpack zipper, and learn when a slider, pull, or complete zipper needs replacement….

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Open hiking backpack packed with balanced gear for comfortable carrying

How to Pack a Backpack: A Practical Loading Guide

Learn how to pack a backpack with balanced weight, accessible essentials, dry gear, efficient use of space, and a properly adjusted harness….

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Hiker testing the torso fit and hip belt of a loaded hiking backpack

How to Choose a Hiking Backpack: A Practical Buyer’s Guide

Learn how to choose a hiking backpack by comparing torso fit, capacity, suspension, materials, hydration, ventilation, and trail features….

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