Custom Case & Bag Manufacturing Guides
Practical guides for B2B buyers covering materials, design, sampling, testing and mass production.
Latest Manufacturing Guides
Functional Bags
Duffel Bag Sizes: Dimensions, Liters & Why 40L Varies
Two 40L duffels rarely share dimensions. Compare liters, size, usable space and fit — and see what belongs in a custom size brief before sampling.
pengtour Aug 15 2026
Materials & Technology
Backpack Materials Guide: How to Specify Nylon, Polyester, Ripstop, Oxford, and Linings
A B2B guide to separating fiber, fabric construction, denier, coatings, and lining choices when preparing a custom backpack specification.
pengtour Aug 14 2026
Materials & Technology
What Is Ripstop Fabric? A Buyer's Guide for Custom Bags
Understand ripstop construction, define the missing material details, prepare a custom bag RFQ, and review the first physical sample.
pengtour Aug 13 2026
Eva Case
EVA Glasses Case Fit Guide: Frame Clearance, Access, and Sample Checks
Learn which folded-frame details to provide, how to review clearance and access, and what to check with actual eyewear on the first physical sample.
pengtour Aug 13 2026
Eva Case
Tool Case With Foam Insert: How to Plan Layout, Access, and Sample Checks
Learn how to freeze a tool set, plan grip and accessory space, review the loaded first sample, and recheck a revised foam insert layout.
pengtour Aug 12 2026
Eva Case
Is EVA Foam Heat Resistant? What Temperature Exposure Means for Protective Case Design
Define temperature exposure, review the full EVA case construction, and match material data, sample checks, and testing to the required approval decision.
pengtour Aug 12 2026