Ergonomic Backpack Construction: How Factories Ensure Load Distribution, Stitching Durability, and Water Resistance?

When I first started auditing backpack production lines for international brands, I quickly learned that the gap between a factory’s photo samples and their actual bulk production capability was often the difference between a successful launch and thousands of returned units. Most sourcing teams focus on visible design elements—zipper hardware, exterior fabric texture, and stitching […]