Ba lô học sinh không thấm nước, Túi đeo vai quảng cáo không thấm nước nhỏ để sử dụng ngoài trời Túi dây rút để leo núi để sử dụng ngoài trời thiết kế mới, quy trình hàn chất lượng cao và cao với chất liệu bạt đảm bảo chất lượng. Chúng tôi đã cống hiến hết mình cho túi đựng thiết bị chống nước ngoài trời trong nhiều năm, bao phủ hầu hết hoặc thị trường châu Âu và châu Mỹ. Chúng tôi mong đợi trở thành đối tác lâu dài của bạn tại Trung Quốc.
School backpacks are carried every day in all weather. Look for a waterproof or water-resistant shell, a padded sleeve for a laptop or tablet, reflective details for dark mornings, and padded, adjustable straps. A wipe-clean surface and sturdy base help the bag last a full school year.
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.
Usually 300 pieces per style; some models start at 200 or 500. Colours can often be split within one order.
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.
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.
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