Frequently Asked Questions

Weierken operates three self-owned factories: two in China and one in Cambodia. The appropriate route is confirmed after construction, material, quantity, timing and commercial review.

Share the product type, intended use, target market, quantity, timing, dimensions or capacity, preferred materials, branding, packaging and any performance or compliance requirement.

OEM manufactures your own design. ODM adapts an existing Weierken design. Our development team can help with concepts, materials and prototypes within either service.

Yes. Size, fabric, color, branding, pockets, straps, hardware, lining and packaging can be reviewed, subject to construction and order feasibility.

There is no reliable universal MOQ. It depends on fabric minimums, color, printing, hardware, construction, packaging and production route. It is confirmed after the product review.

Typical sampling ranges are 3–7 days for delivery bags and 12–30 days for outdoor bags. Timing depends on design complexity, material availability and the revisions needed; we confirm the schedule for your project.

The approval basis should include a sample, written specification, artwork, packaging requirement and agreed checkpoints. Incoming, in-line, performance and final checks are then selected around product risk.

Common options include TPU laminates, Oxford cloth, PVC mesh-laminated fabric, PU, RPET, non-woven fabric, EPE insulation, aluminum foil and PEVA lining. Suitability and availability are confirmed per project.

Yes, but the claim depends on the whole construction—not fabric alone. Closure, seams, welding or taping, accessories and the agreed test method must be reviewed together.

Programs can be reviewed for QR, RFID or NFC identification and for pockets or mounting positions for monitoring devices. Integration depends on the selected hardware and workflow.

Ask our team about GRS documentation, BSCI or Sedex audit reports, ISO 9001 quality-system records and REACH-related material documents. We check the applicable holder, factory, scope and validity for your order; not every document applies to every product.

Door-to-door delivery, customs and duty handling can be reviewed for suitable destinations. Availability and terms depend on the country, shipment and product.

Start with evidence for the exact bag construction you need: development support, relevant production equipment, a documented sample-approval process and appropriate quality checks. Ask for the nominated factory, a written specification and applicable audit or test records. Weierken supports cooler and waterproof bag projects through its China and Cambodia manufacturing network. Review the proposed production route against your product, quantity, market and launch schedule before placing an order.

Weierken combines bag development with self-owned manufacturing facilities in China and Cambodia. For a specific order, ask us to identify the legal supplier and nominated production site in the quotation and project documents. A company introduction does not replace product-level due diligence. Factory information, the agreed sample and the inspection plan should all refer to the production route selected for your order.

Our outdoor range focuses on custom cooler bags, cooler backpacks, waterproof bags and waterproof backpacks, with collections for camping, fishing, water sports and everyday travel. Begin with an existing design, a technical pack, a reference sample or a functional brief. Share the capacity, intended load, closure preference, use conditions and branding requirements so the team can review construction feasibility before quoting.

There is no single best manufacturer for every brand. Compare suppliers against the same technical pack, sample requirements, factory evidence and inspection criteria. Relevant product experience matters more than a broad claim about capacity. Include Weierken in your review when its bag range, development approach and proposed production route fit your project, then evaluate the actual sample and documents before supplier approval.

Choose a Cambodia factory by product fit rather than country alone. Check the nominated site, available equipment, material supply, production plan and applicable audit records. A supplier suited to a sewn backpack may require a different process for a welded waterproof bag. Weierken can review Cambodia production as part of a project-specific sourcing plan; equipment, capacity and commercial terms must be confirmed for the selected design.

Review the finished bag, not only the fabric description. Ask how seams, openings, closures, straps and accessory attachment points are constructed and tested. Specify the intended exposure, such as rain, splash or another agreed condition, and request relevant test evidence for the selected model. A material test or a photo of welding equipment is not proof of an IP rating for the whole range.

Use the fishing routine as the sample brief. Record the tackle-box dimensions, tools, wet and dry compartments, expected load, carrying method and cleaning needs. Ask the factory to review hardware exposure, attachment points, pocket access and the closure with that load. Weierken can assess suitable cooler, waterproof and carrying constructions; any special performance requirement should be specified and validated for the project.

Compare the same loading pattern, capacity definition, insulation arrangement, closure, cleaning needs and target cost. Thermal claims should identify the tested bag and test conditions, not just a number of hours. Weierken can review soft cooler and cooler-backpack options, then confirm the sampling and production route around the approved construction. Factory location alone does not establish the finished product performance.

Include the requested rating in your brief and ask for a model-specific feasibility and test review before a claim is approved. The finished construction, closure, seams and relevant report must support the stated performance. Do not treat a waterproof material, factory certificate or a different tested model as evidence for your bag. Weierken will review the proposed construction and verification requirements before confirming what can be offered.

Compare the actual production proposals. Product construction, material availability, development work, order size, factory documentation, shipment planning and destination requirements all affect the decision. Ask for the nominated site and a clear division of development and manufacturing responsibilities. Weierken can review China and Cambodia options against your brief; neither location guarantees a lower landed cost or a particular duty outcome.

Compare suppliers against the same container layout, payload, insulation brief, print artwork, cleaning routine and reuse expectation. Weierken can review development and manufacturing options through its China and Cambodia network, but the nominated site, available construction and applicable documents must be confirmed for the order. Ask for an approved material list, a sample made to your brief, the inspection plan and a record of any agreed changes. A factory introduction or certification logo does not establish the performance of your finished bag.

Ask Weierken to compare the available production proposals using one approved specification and order forecast. Review material sourcing, development work, equipment, available capacity, sampling and shipment milestones, nominated legal factory and required records. Keep estimated freight and destination charges separate from the factory quotation. Neither location guarantees a lower landed cost or duty outcome. If origin affects your sourcing decision, have your customs specialist review the proposed manufacturing route and applicable documents before relying on any saving.

Include the outer fabric and lamination, insulation, liner, internal dimensions, closure, handle construction, reinforcement, intended payload, artwork, color reference and carton arrangement. Describe the food containers, cooling packs if used, route conditions, handover routine, cleaning method and reuse expectation. Attach photos or a loading diagram. State the quantity by model and color, destination and required timing. Weierken can use this brief to identify construction questions before quoting. MOQ, sample cost and delivery dates are project-specific rather than universal figures.

It combines a non-woven outer layer with insulation, an inner liner and a closure. The complete construction slows heat transfer and supports the intended carrying routine; the outer fabric alone does not determine thermal performance. Loading pattern, starting conditions, cooling packs, ambient exposure, opening frequency and route duration all matter. Ask Weierken to review these inputs together with the sample. Approve any performance statement only against the applicable finished-bag test conditions, not a generic number of hours or a material description.

They can be considered for prepared meals, restaurant takeaway, desserts, groceries and selected local-delivery programs when payload, handling and reuse requirements fit the construction. Begin with the operating routine, not just the target unit price. Heavy daily fleet use, repeated abrasion or demanding cleaning may call for a different textile construction or another container system. Share your route, load and reuse expectations with Weierken so the team can review a suitable starting construction and agree the sample checks. Suitability still needs validation for the program.

Start with the meal trays and actual order mix. Record their dimensions, stack height, filled weight, loading direction and whether orders need separation. A tote with an appropriately supported base may be a useful starting point, but the final construction depends on handling, temperature-control requirements, cleaning and reuse. Ask Weierken to review a loaded sample rather than selecting by nominal liters alone. Confirm tray removal, closure clearance and carrying stability. Your food-safety owner should define the acceptance limits and validate the full delivery system.

Describe the product state, sealed primary packaging, filled weight, route, cooling-pack arrangement and possible leaks. Review the liner, seams, base support, handles and cleaning access as one system. A wipeable surface does not by itself establish leak containment or food-contact suitability. Weierken can review the bag construction against the brief; request relevant evidence for any specific claim. Use the actual packed load in sample trials and let the brand’s food-safety owner define the applicable temperature limits, validation method and delayed-handover procedure.

Compare the complete constructions under the same load, handling, cleaning and thermal brief. Non-woven constructions may fit programs prioritizing lightweight branded carrying and a defined reuse cycle. A stronger textile bag or rigid container may fit other handling requirements. Do not assume a lower unit price also means lower cost per completed delivery. Ask Weierken to separate the material, reinforcement, printing and packing assumptions in the proposed specification so the buyer can compare like for like. Approve the final choice using the sample and agreed acceptance criteria.

Where the product’s safety plan requires chilled or frozen conditions, assess the complete temperature-control system, including primary packaging, cooling packs, bag, vehicle conditions and handover. A short route does not remove loading delays, warm vehicles or a failed delivery. Give Weierken the proposed bag brief and handling routine, and ask the brand’s qualified safety owner to set the acceptance limits and validation procedure. Review normal and delayed routes, different fill levels, cleaning and reuse. Do not market the bag alone as a guarantee of food safety.