Custom Underwear Manufacturer in the USA , Men's & Women's, Low MOQ from 200 Pieces
Sigma Apparel is a leading custom underwear manufacturer in the USA producing premium men’s and women’s underwear for private label brands, fashion labels, and businesses across the United States and worldwide. From custom boxers, briefs, trunks, and long johns for men to women’s briefs, thongs, boy shorts, and hipsters, our cut and sew underwear manufacturing service covers every style with a low minimum order quantity of just 200 pieces per design and colour. Whether you are launching a private label underwear brand, expanding an existing intimate apparel range, or manufacturing branded underwear for retail distribution, Sigma Apparel handles every step from fabric sourcing and tech pack development to custom labelling, packaging, and worldwide delivery.
Custom Men's Underwear Manufacturer — Boxers, Briefs, Trunks & More
As a dedicated custom men’s underwear manufacturer, Sigma Apparel produces every major underwear style for men — from classic boxer shorts and fitted boxer briefs to low-rise trunks, compression shorts, and long john thermal underwear. We understand the physiological and ergonomic requirements of well-made men’s underwear: the pouch construction, the waistband tension and recovery, the gusset reinforcement, and the fabric softness that determines all-day comfort. Every style we produce is built to these functional standards, not just aesthetics. Our experience manufacturing men’s undergarments for brands across the USA, UK, Canada, and Australia means we can guide you through every technical decision from your first inquiry to your finished product.
We manufacture custom men’s underwear in a wide range of fabrics — 95/5 cotton/elastane for classic soft comfort, nylon/spandex for performance and athletic underwear, modal/elastane for luxury softness, and microfibre polyester for lightweight, moisture-wicking active styles. All fabric is tested for stretch and recovery, colourfastness, and pilling resistance before entering production. Our fabric selection team advises the best composition for your brand’s positioning and price point during the consultation stage. With a 200-piece MOQ per style and colour, you can build a comprehensive men’s underwear range — boxers in 4 colourways, briefs in 3 — without the capital risk of high-volume minimums. For coordinating products, explore our sportswear manufacturing service.
Custom Women's Underwear Manufacturer — Briefs, Thongs, Boy Shorts & Full Coverage
Sigma Apparel’s custom women’s underwear manufacturing covers every style in the category — from everyday cotton briefs and hipsters to seamless thongs, high-waist boy shorts, bikini cuts, and full-coverage period underwear styles. Women’s underwear requires a different approach to men’s in terms of cut, gusset construction, lace and trim integration, and the wider variation in silhouette preferences across different customer demographics. Our production team has extensive experience with all women’s underwear construction types and works from detailed tech packs to ensure the fit, coverage, and comfort of every style matches your brand’s specification exactly. For coordinating intimate apparel, our lingerie manufacturer service covers bras, bodysuits, and full lingerie collections under the same production roof.
We produce women’s underwear in cotton/elastane, lace-integrated nylon/spandex, modal/elastane, bamboo/cotton for eco-conscious brands, and microfibre for seamless styles. Customisation options include all-over sublimation printing for bold patterned underwear, screen printing for logo waistband placement, lace trim integration, contrast colour panelling, and embroidered logo details. Custom woven waistband labels, inside care labels, and retail-ready packaging are all included in our private label underwear manufacturing service. Our portfolio includes recent examples of both men’s and women’s underwear production for US and international clients.
Cut and Sew Underwear Manufacturing, Built to Your Exact Specification
Our cut and sew underwear manufacturing service builds every garment from raw fabric using a custom pattern developed specifically for your design — giving your brand a truly original product with the fit, construction, and silhouette that reflects your brand identity. Unlike manufacturers that adapt generic blank patterns, our cut and sew approach allows you to specify waistband height and width, pouch depth (for men’s styles), gusset type and reinforcement, leg opening and coverage, seam construction (flatlock, overlocked, or bonded for seamless styles), and every trim or decorative detail. The result is an underwear garment that your competitors cannot replicate from off-the-shelf templates.
We have produced cut and sew underwear for premium DTC underwear brands, athletic performance underwear labels, sustainable underwear startups, and corporate merchandise buyers across the USA and internationally. Our cut and sew production has a MOQ of 200 pieces per style and colour — making it genuinely accessible for new brands testing a market before scaling. As part of our service, we produce a detailed tech pack and physical sample for your approval before any bulk production begins. This sample-first commitment means your investment is protected at every stage. See our guide to finding the right clothing manufacturer for advice on what to look for when choosing an underwear production partner.
Private Label Underwear Manufacturer, Launch Your Brand With Full Design Ownership
Sigma Apparel is a trusted private label underwear manufacturer for brands that want to sell premium underwear under their own name — not a generic supplier’s label. We manufacture custom underwear complete with your woven waistband labels, printed care and size tags, hangtags, and retail-ready packaging, all under a full non-disclosure agreement that keeps your designs exclusively yours. Our private label underwear manufacturing service is used by DTC fashion brands, subscription underwear box services, premium basics labels, and active lifestyle brands across the USA, UK, Canada, Australia, and the UAE. Your designs, your label, your brand — and a production partner that treats your business as its own.
We offer full flexibility on every private label element: custom woven waistband labels in your brand’s typeface and colour, printed neck and care labels with your fabric composition and care instructions, premium poly bags or branded retail boxes, and individual or multi-pack packaging formats. For brands launching a full intimate apparel range, we can produce coordinating women’s lingerie and custom leggings alongside your underwear collection — all under a single manufacturing partnership. Our 200-piece MOQ means your first private label underwear run is financially manageable at every brand stage.
Bulk Underwear Manufacturing for Retail, Wholesale & Brand Scaling
Need high-volume custom underwear for retail distribution, wholesale supply, or brand scaling? Sigma Apparel’s bulk underwear manufacturing handles orders from 200 pieces to 100,000+ units with consistent quality at every scale. We work with underwear brands restocking bestselling styles, fashion retailers building own-label underwear ranges, subscription box services sourcing monthly product at competitive per-unit pricing, and athletic wear brands adding underwear to their collection. Our US-based project management team in St. Petersburg, FL coordinates with our manufacturing facility in Karachi, Pakistan — giving you competitive pricing with reliable quality, clear communication, and consistent turnaround regardless of order size.
As a full-service underwear manufacturing company, we produce not just the garments themselves but everything that surrounds them — custom printed multi-pack sleeves, branded retail boxes, individual polybag packaging, and point-of-sale hang tags. Whether your underwear is destined for a DTC e-commerce fulfilment centre, a boutique retailer, or a major department store buyer, we produce it shelf-ready from our facility. Brands that start with underwear regularly expand their range to include coordinating athletic wear, swimwear, and socks — all available under the same production partnership at Sigma Apparel.
Why work with us?
We are hard to inspect and ensure that every garment is carefully crafted from raw materials until they are a ready-made product. We create samples for our clients as they require looking at the product physically.
We keep on bringing new and new designs, as we have a professional graphics designer’s team that can create any custom design you want. We also follow the tech pack development and create a file containing all the information and specifications on sizing that helps the production team produce a well-crafted sample.
The sample is sent to the customer for a checkup, and if the sample is confirmed, bulk production begins. We are a one-stop-shop for all of your needs.
The Sigma Apparel
Our Underwear Manufacturing Process
Fabric Selection
Your dedicated project manager guides you through our underwear-specific fabric library — cotton/elastane, modal, microfibre, nylon/spandex, and bamboo blends — advising the best composition for your style, price point, and target customer. We test every fabric for softness, stretch, recovery, and colourfastness before ordering.
Cut & Sewing
Once your fabric and pattern are approved, our skilled production team cuts and assembles each garment to your exact tech pack specifications — ensuring precise waistband attachment, correct pouch or gusset construction, flatlock seam placement, and consistent sizing across every unit from XS to 5XL.
Customization
All branding and decoration is handled in-house: custom sublimation printing for all-over patterned styles, screen printing for waistband logo placement, embroidery for premium branded details, and contrast colour panelling or lace trim integration for design-forward styles.
Labeling
Every garment receives your full label suite — custom woven waistband label, printed inside care and size label, country of origin label — all placed exactly to your brand guidelines and retail compliance requirements before moving to packaging.
Packaging
Finished underwear is inspected, folded, and packed to your exact specification — individual polybags, branded multi-pack sleeves, retail hang tags, or premium boxed packaging. Your product arrives presentation-perfect and ready for fulfilment or retail shelving.
Shipment
Orders ship directly to your address via DHL, FedEx, or sea freight depending on your timeline and budget. We provide full tracking from our facility to your door and follow up on every shipment to confirm delivery.
YOUR TRUSTED CUSTOM UNDERWEAR MANUFACTURER, MEN'S & WOMEN'S, USA & WORLDWIDE
PREMIUM UNDERWEAR MANUFACTURING SERVICES
If you are looking for a reliable custom underwear manufacturer, men’s underwear manufacturer, or women’s underwear manufacturer USA, The Sigma Apparel provides end-to-end manufacturing solutions tailored for modern underwear brands. We help businesses create high-quality, comfortable underwear that meets market demand and builds long-term brand value.
Frequently Asked Questions
Sigma Apparel’s minimum order quantity for custom underwear is 200 pieces per style and colour. This applies to all underwear orders for both men and women — cut and sew, private label, and bulk manufacturing. Our 200-piece MOQ allows brands to launch multiple styles and colourways simultaneously without the financial risk of high-volume commitments on untested designs.
Yes. Sigma Apparel manufactures a complete range of men’s and women’s underwear under one roof. For men, we produce boxers, boxer briefs, briefs, trunks, compression shorts, and long johns. For women, we produce briefs, hipsters, boy shorts, thongs, bikini cuts, and high-waist styles. Both ranges are available in cut and sew or private label format with full customisation on fabric, colour, and branding.
We manufacture all major men’s underwear styles: classic boxer shorts, fitted boxer briefs, low-rise trunks, traditional briefs, compression shorts, performance athletic underwear, and thermal long johns. All styles are available with custom waistband labels, printed patterns, or sublimation all-over printing. Every style starts at a 100-piece MOQ per colour.
We manufacture all major women’s underwear styles: full briefs, hipsters, boy shorts, bikini cuts, low-rise thongs, G-strings, seamless styles, and high-waist coverage options. We also manufacture period underwear with multi-layer absorbent gusset construction. Lace trim integration, contrast panelling, and custom printed patterns are available across all styles.
We work with 95/5 cotton/elastane (the most popular fabric for everyday underwear due to its softness and breathability), modal/elastane (premium softness for luxury brands), nylon/spandex (performance and athletic underwear), microfibre polyester (lightweight, moisture-wicking), and bamboo/cotton blends (eco-conscious and naturally antibacterial). Our fabric team advises the best composition for your brand positioning and price point.
Yes. Our private label underwear manufacturing includes custom woven waistband labels, printed care and size tags, hangtags, and retail-ready individual or multi-pack packaging — all under your brand name. A non-disclosure agreement is signed before any design files are shared. Private label underwear is available for both men’s and women’s styles from the same 100-piece MOQ.
Our standard turnaround time is 30 to 35 business days from sample approval to delivery. Physical samples are produced within 15 business days of tech pack approval. Bulk production then takes a further 15 to 20 business days. Rush production may be available — contact our team to discuss your specific timeline requirements.
Yes. We offer all-over sublimation printing on polyester/spandex underwear fabrics. Sublimation printing produces vibrant, seamless all-over patterns with permanent colour that will not crack or fade under normal washing conditions. For cotton-based underwear with logo placement, screen printing and woven waistband labels are the standard customisation options.
We ship worldwide including the United States, United Kingdom, Canada, Australia, UAE, Germany, and throughout Europe.
