- sales@keweibag.com
- 3F, No.4 Building, Xihuyuanquan Office Building, No.188 Beiqing East Road, Fengze District, Quanzhou, China
Reliable Polyester Backpacks Manufacturing
- Support ODM/OEM, from design to function fully match the personalized needs of the brand
- Over 20 years of experience custom polyester backpack manufacturer
- 600D polyester fabric, light weight, wear resistance, tear resistance, through strict quality testing
- 15% discount for the first order of 500pieces, cost-effective, reducing brand start-up costs
- One-stop service, from design, and packaging to shipping

Polyester Backpack Manufacturering in China
Expand your backpack product line with Kewei polyester backpacks. For polyester-made backpacks that balance lightweight and durability, you can choose our large inventory of material grades. Kewei offers PVC-coated polyester, recycled polyester, ripstop polyester, jacquard polyester, standard polyester, or custom grades for backpacks according to your request.
With our years of experience in polyester backpack manufacturing, we are the only backpack factory in China that offers 100% ODM and OEM services. Whether you want polyester backpack for women, recycled polyester backpack, polyester fabric backpack, polyester drawstring backpack, polyester mini backpack, polyester laptop backpack, or polyester travel backpack, Kewei will customize every feature to match your brand.
The 600 denier polyester yarn fabric remains our top-selling grade for tear-resistant, lightweight, and durable backpacks. What’s more, every polyester material for a backpack must pass 100% strict quality testing for color-fast, denier count, texture, and weave quality. As your trusted wholesale polyester backpack supplier in China, Kewei strives to empower your brand through quality manufacturing ethics.
At Kewei, you get flexible MOQs, competitive prices, and fast turnaround for every polyester-made backpack order. Enjoy our limited offer of a 15% discount for your first 300 pieces!

Classic Polyester Backpack

Cute Polyester Backpack

Dark Olive Polyester Backpack

Grey Polyester Backpack

Navy Polyester Backpack

Polyester School Backpack

Ripstop Polyester Backpack

Travel Polyester Backpack
Is a 100% polyester backpack waterproof?
While 100% polyester backpacks naturally resist light moisture due to the fabric’s tight weave, they aren’t inherently waterproof. Untreated polyester can handle brief rain showers but will eventually let water through, especially at seams and stitching points. To achieve true waterproof performance, polyester backpacks require additional treatments like PU or PVC coatings on the interior fabric, fully taped seams to seal needle holes, and waterproof zippers with protective flaps.
Quality waterproof polyester backpacks often carry IPX ratings (like IPX4 for splash resistance or IPX7 for submersion protection) to verify their capabilities. For casual use, a DWR (Durable Water Repellent) spray treatment provides temporary water resistance, but serious outdoor conditions demand factory-laminated polyester with welded construction. Always check product specifications – the term “waterproof” should be backed by technical details, not just marketing claims.
Is 100% polyester good for backpacking?
While 100% polyester backpacks can serve casual backpackers, they have clear limitations for serious outdoor use. The material’s lightweight and quick-drying properties make it suitable for short trips in fair weather, especially when keeping loads under 20 pounds. However, polyester lacks the natural durability of nylon – it abrades faster on rough trails and offers minimal water resistance unless treated with PU coatings or DWR finishes.
For occasional hikers on maintained trails, a heavier-denier polyester pack (600D+) with reinforced stitching may suffice. But multi-day backpackers or those encountering wet conditions will prefer nylon’s superior tear strength and weather resistance. The choice ultimately depends on trip length and terrain – polyester works for lightweight summer excursions, while demanding adventures warrant more rugged materials.
How to get stains out of a polyester backpack?
Cleaning stains from polyester backpacks requires the right approach to avoid damaging the fabric. For fresh stains, gently dab (don’t rub) the area with a mixture of mild detergent and cool water, then rinse thoroughly. Tackle oil-based stains with a baking soda paste applied for 15 minutes before brushing off, while ink responds best to rubbing alcohol (always test on an inconspicuous area first). For set-in grime, machine wash inside a protective mesh bag using cold water and gentle cycle, then air dry – never use heat which can warp the material.
Different stains need specific treatments: vinegar solutions work for grass marks, hydrogen peroxide helps with blood, and dried mud should be brushed off before washing. After cleaning, restore water resistance with a DWR spray. With proper care, your polyester backpack can stay looking new through many adventures.


