กระเป๋าเป้สะพายหลัง

Choosing the Right Backpack

Start with the use: commuting, school, travel or outdoor. Then choose the level of protection. Waterproof backpacks with welded seams and roll-top or airtight closures keep contents dry in a downpour; water-resistant backpacks with coated fabrics and covered zips shed light rain at a lower cost. Check the harness, the laptop sleeve if needed, and the pocket layout.

Every order passes through incoming material inspection (IQC), in-process checks during welding and sewing (IPQC) and final inspection (OQC), with SGS or QIMA third-party inspection available on request. Our test programme covers seam tensile and bonding strength, load testing of 1,500+ cycles, zipper testing to 3,000 cycles, salt spray on hardware, abrasion, and colour fastness and colour difference against the approved sample. Waterproof ratings are verified on the bag itself: a heavy rain and water-jet test for IPX5 and IPX6 models and a full water-immersion test of 2+ hours for IPX7 and IPX8 models.

Frequently Asked Questions

What is the MOQ for custom backpacks?

Usually 300 pieces per style; some models start at 200 or 500. Colours can often be split within one order.

How much do custom backpacks cost?

Price depends on the material, size, closure, features, logo method and order quantity. Send us your specification or a reference sample and target quantity, and we will quote.

Can you add our logo and brand colours?

Yes. Screen printing, heat transfer and welded patches are the most common methods, and we can match Pantone colours for the fabric, webbing and zip pulls.

How long do samples and production take?

Samples usually take 7–15 days and bulk production 30–45 days after sample approval, from our factories in China or Vietnam.

Related guides: How to waterproof a backpack  |  Travel bag vs backpack