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Your Reliable Bag Manufacturer
Founded in 2006, Weierken is a trusted bag manufacturer with 20 years of experience in the outdoor and delivery bags industry.
We operate 3 self-owned factories across China and Cambodia, covering 80,000+ sqm with over 3000+ skilled workers. Our core product lines include cooler bags, waterproof backpacks, beach bags, and more, all OEM, ODM, and custom-built to client specifications.
Trusted by 2,000+ global brands, we provide dedicated R&D, fast turnaround, and strict quality control as their long-term design and production partner.
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Why Choose Us
1. Certified In-House Factories in China and Cambodia
Weierken owns and operates three self-owned factories across China and Cambodia, covering 80,000+ square meters and staffed by 3000+ skilled workers. With BSCI, SEDEX, ISO, and other certifications, our vertically integrated production ensures stable quality, on-time delivery, and cost control, trusted by 2,000+ global clients.
2. Experienced R&D Drives Market Fit
Our in-house R&D team works closely with brands to turn concepts into custom products. We combine trend insights, user behavior research, and prototype testing to create cooler bags, delivery bags, and waterproof gear that align with your market and brand vision.
3. Flexible ODM/OEM/Customization Services
From materials, structure, and colors to logos and retail-ready packaging, we guide clients through every detail of the customization process. Weierken supports both flexible-MOQ pilot runs and high-volume orders, offering mockups, 3D previews, and flexible adjustments along the way.
4. Partnership Mindset, Not Just Manufacturing
We’re more than a bag factory. We act as a hands-on production partner to many brands, helping them scale efficiently. With responsive communication, after-sales support, and continuous development, our team is committed to long-term brand growth, not just one-time orders.
Certification
What's On Trend
25L IPX7 WATERPROOF WIDE-OPENING BACKPACK W02-26SS
Designed for short fishing sessions, boat or kayak dry storage, outdoor travel and rain-season commuting.
20L MAGNETIC-CLOSURE WATERPROOF COOLER BACKPACK C04-26SS
Designed for fishing, boating, outdoor travel and retail outdoor programs.
Insulated Delivery Bags DBS06
All-in-one delivery bag with premium features for...
Insulated Food Delivery Bag With Shoulder Strap DBS08
Insulated bag, fit for food trays, meats, grocery delivery...
Recent Blog Posts
Guides
6 Custom Features from a Reliable Insulated Drink Delivery Bag OEM
Delivering drinks is fundamentally different from delivering solid food. Liquids slosh, shift center of gravity mid-turn, and conduct thermal energy rapidly. A single sudden stop on a scoo
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Guides
Thermal QC from a Custom Beverage Delivery Bag Manufacturer
Beverage delivery operates on razor-thin margins where temperature control makes or breaks the customer experience. Industry data shows that over 35% of negative reviews on food delivery p
Read More »![How to Audit a Chocolate Transport Cooler Bag Supplier [OEM Guide]](https://weierkenbag.com/storage/group_1773856485320/202604/DBS101.webp "How to Audit a Chocolate Transport Cooler Bag Supplier [OEM Guide]")
Guides
How to Audit a Chocolate Transport Cooler Bag Supplier [OEM Guide]
High-end chocolate is fragile. When ambient temperatures rise above 24°C, cocoa butter begins to soften. At 28°C to 32°C, the crystal structure collapses entirely. Once that happens, fat b
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