Your Trusted Seamless Underwear Manufacturer Since 2013
Full-service manufacturing from design to delivery.
Custom Underwear
Turning Your Ideas into Quality Products
Your search for a reliable manufacturing partner ends here. At Xiwelundies, our expert engineers and dedicated bilingual team guide you through every step—from design and prototyping to full-scale production. We make premium seamless manufacturing simple and efficient.
From Sketch to Seamless Reality
From a simple sketch to a detailed design, our team has the technical expertise to bring your most ambitious seamless underwear concepts to life. We guarantee a final product that matches your exact specifications and exceeds your quality expectations.
From Sample to Signature Product
Provide us with a sample, and we’ll elevate it. We can reverse-engineer, improve, and innovate on existing designs, incorporating your unique branding to create a signature seamless line that stands out in the market.
Share your vision with us—whether it's a detailed tech pack, a physical sample, or a brand new concept. Our experts will collaborate with you to refine the design for optimal seamless production.
We translate your design into a physical seamless prototype. This crucial stage allows you to test the fit, feel, and construction, ensuring the product foundation is perfect before mass production.
Once the prototype is approved, we source the ideal high-performance yarns and fabrics for your seamless collection. We help you select materials that meet your brand's standards for comfort, durability, and aesthetics.
Using the final bulk fabric, we produce a Pre-Production Sample (PPS). This is your final confirmation of the product's look, feel, and quality. We don't proceed until you are 100% satisfied.
Upon approval, our automated systems execute precision cutting of all fabric components. This technology guarantees consistency across every single unit and minimizes material waste.
Your collection comes to life on our advanced seamless knitting machines. Our skilled technicians then handle assembly and finishing, with rigorous in-line quality control at every step to maintain the highest standards.
Every single finished garment undergoes a meticulous final inspection. Our QA team rigorously checks for any imperfections in stitching, sizing, and finish, ensuring only flawless products move to the next stage.
Presentation matters. We pack your products according to your exact specifications, offering custom, retail-ready packaging solutions that protect the garment and elevate your brand's customer experience.
Your order is ready. We manage the entire logistics process, partnering with trusted global carriers to ensure your products are delivered safely and on-schedule, anywhere in the world.
why choose us
Our Competitive Advantage
Partner with a premier seamless underwear manufacturer trusted by global brands. Our German TUV-certified factory, a testament to our commitment to quality, combined with years of specialized seamless manufacturing experience, ensures your collection is produced to the highest standards of innovation and reliability.
Our expertise in seamless knitting technology results in garments with a second-skin feel, superior comfort, and exceptional durability. We obsess over every detail, from yarn tension to flawless finishes, to deliver a product your customers will love.
Your brand's intellectual property is paramount. We operate under strict Non-Disclosure Agreements (NDAs) to guarantee your unique seamless designs remain 100% exclusive to your brand. Your innovation is safe with us.
Accelerate your time-to-market. Our efficient seamless prototyping process allows you to review physical samples quickly, enabling faster design iterations and approvals. Launch your collection ahead of the competition.
From initial design consultation to global logistics, we are your comprehensive seamless manufacturing partner. We manage the entire supply chain—sourcing, prototyping, production, and packaging—so you can focus on what you do best: building your brand.
Factory Production Video
The Power Behind Your Seamless Collection
At xiweiundies, we are dedicated to providing high-quality custom seamless underwear. Below are the key highlights of our production capabilities
Monthly Production Capacity:100,000 – 300,000+ Pieces Monthly. We have the scale to support your brand’s growth, from initial launch to large-scale retail fulfillment, always delivered on schedule.
3-Stage Quality Assurance: Every garment passes through three distinct inspection points—in-line production, post-production, and final pre-shipment—to guarantee a flawless product.
Customization Options: Access a vast library of premium yarns and materials. We empower brands of all sizes by offering flexible Minimum Order Quantities (MOQ) to help you get started.
German TÜV Certified Factory: Our facility is certified by TÜV Rheinland (Germany), a globally recognized mark of the highest quality, safety, and operational excellence.
Proven Client Trust: Proven Client Trust. We build partnerships that last. Over 90% of our clients place repeat orders, a direct testament to our consistent quality, reliability, and dedicated service.
Inside Our Manufacturing Powerhouse
Explore our vertically integrated facility, where advanced technology and expert craftsmanship converge.
From premium raw materials to the final packaged product, we control every step to guarantee the quality you expect and the reliability your brand deserves.
See exactly how we are equipped to bring your designs to life—on time and to your precise specifications.
Custom Seamless Underwear Solutions
Customize Based on Your Sample or Design
Expert Guidance on Fabric and Fit
No Obligation, Free Consultation
Direct Communication with Our Specialists
Get Free Quote
Reach out to us for a free quote and expert advice on your custom underwear needs. We’ll help you find the perfect solution for your brand with XiweiUndies.