Your Collaborative Underwear Maker
Custom Underwear
From Concept to Shelf in 60 Days
Send us your tech pack today and get a full quote, timeline, and fabric options within 12 hours. Our bilingual merchandisers and in-house engineers handle every step—from digital pattern-making to final QC—so you can focus on marketing your brand, not chasing your factory.
Your Sketch, 98 % Accurate on the First Sample
Upload your design file and receive a precision-cut prototype in as little as 7 days. Digital pattern-making, colour matching, and a three-point fit check ensure the sample you unbox mirrors the artwork you submitted—eliminating costly redesign loops.
Turn Any Reference Piece into a Branded Bestseller
Ship us a garment you admire—competitor or otherwise—and we’ll reverse-engineer the fit, upgrade the fabric, and add your custom waistband, labels, and packaging. Receive a shelf-ready sample in as fast as 7 days (lead time varies by design complexity).
From Concept to Production
From Vision to Reality: Our 9-Step Production Process
We’ve engineered our process for transparency and quality, so you can focus on your brand, not your production.
Submit your tech pack or physical sample. Our experts review every detail to ensure your vision is perfectly understood before we begin.
We create an initial prototype for you to evaluate the fit, feel, and construction. This is the first step in turning your design into a physical product.
Upon fit approval, we source your specified bulk fabric. We provide swatches for your final approval to guarantee color and quality consistency.
We create a final sample using the actual bulk fabric and trims. This "golden sample" is your guarantee: your entire production run will match this exact standard.
Once the PPS is approved, we use automated cutting technology to ensure every piece is cut with maximum precision, ensuring size consistency across the entire batch.
Your product moves to our dedicated sewing lines. We implement in-line quality checks throughout the assembly process, not just at the end, to maintain consistency.
Every finished garment undergoes a final, meticulous inspection. We check for stitching defects, sizing accuracy, and overall finish, ensuring each piece meets your brand's high standards.
Products are carefully folded, packed, and boxed according to your specifications. We help create a professional unboxing experience for your customers with custom bags, tags, and labels.
Your order is now ready for market. We handle all logistics and work with trusted carriers to ensure a safe and timely delivery to your warehouse.
Our Competitive Advantage
Why Brand Builders Choose Us
At XiweiUndies, We’re more than a factory; we’re your strategic production partner. Our TUV-certified facility and deep industry experience are the foundation for your brand’s quality and growth.
Your brand's reputation is built on quality. We build quality into every stitch. Our meticulous process and expert team ensure every garment meets premium standards for fit, finish, and durability.
Your creativity is your greatest asset. We protect it fiercely. Every client relationship is bound by a strict Non-Disclosure Agreement (NDA), ensuring your unique designs remain exclusive to your brand.
Don't let production delays hold you back. Our streamlined prototyping and fast sample turnarounds mean you can approve your designs faster and launch your collection on schedule.
Focus on building your brand, not managing logistics. From design finalization to manufacturing, packaging, and global shipping, we manage the entire process. Your vision, delivered hassle-free.
Precision in Production, Partnership in Growth
The Proof is in the Production
At xiweiundies, we are dedicated to providing high-quality custom seamless underwear. Below are the key highlights of our production capabilities
Customer Satisfaction: Over 95% of our customers are satisfied with our products, with more than 90% returning for repeat orders.
Monthly Production Capacity: 100K to 300K pieces per month, ensuring timely fulfillment of large orders.
Certification: Our products are certified by Germany’s TÜV, ensuring top-quality and safety standards.
Customization Options: Wide range of fabric choices and full-size range available, with flexible minimum order quantities (MOQ).
Quality Control: Each product undergoes three rigorous quality inspections to ensure it meets our high standards.
Transparency You Can See, Quality You Can Trust
We believe in full transparency. Explore our modern, TÜV-certified facility. Here, cutting-edge technology and human expertise come together to create the quality your brand deserves.
Turn Your Design Into a Bestseller
From Your Sketch to a Market-Ready Product
Expert Guidance to Perfect Your Fabric & Fit
Direct Access to Our Production Specialists (No Middlemen)
A No-Risk, No-Obligation Project Review
Let's Get Started
Fill out the form to claim your strategy session. We’ll personally review your project and map out a plan for your success.