Women's Seamless Underwear: The Complete OEM Manufacturing Guide
📋 Direct Answer: Women's Seamless Underwear: The Complete OEM Manufacturing Guide Seamless underwear is manufactured on circular knitting machines that create a tubular garment in one piece — no side seams, bonded edges.
Seamless underwear is manufactured on circular knitting machines that create a tubular garment in one piece — no side seams, bonded edges. It now accounts for 25%+ of women’s underwear sales globally. Best fabrics: nylon-spandex (85/15) or polyamide microfiber.
Seamless underwear has grown from a niche innovation to a mainstream category, now accounting for over 25% of women’s underwear sales globally. For OEM buyers, understanding seamless technology is essential to competing in this fast-growing segment.
What is Seamless Underwear?
Key Insight: Women's seamless underwear is manufactured on circular knitting machines (Santoni type) that create a tubular garment in one piece — zero side seams, laser-cut edges for invisible finish, bonded hem instead of stitched. It now accounts for 25%+ of global women's underwear sales. Best fabric: nylon-spandex 85/15 for most applications; polyamide microfiber for ultra-light 120-150GSM weight. The key OEM differentiator is waistband construction — silicone grip strips eliminate rolling without elastic bulk. Seamless OEM →
| Feature | Seamless | Cut-and-Sew |
|---|---|---|
| Side seams | None | 1-2 per side |
| Visible lines | Zero | Possible |
| MOQ | 2,000-5,000 | 3,000 |
| Cost | +15-25% | Baseline |
Seamless underwear is produced on circular knitting machines that create a tubular garment in one piece. There are no side seams, and waists and leg openings are finished with bonded or laser-cut edges. The result: zero visible panty lines, superior comfort, and a clean aesthetic.
Manufacturing Process
Seamless production requires specialized Santoni or Lonati circular knitting machines (24-32 gauge). Yarn is fed directly into the machine, which knits the complete garment shape including waistbands and leg openings. Post-production steps include bonding, heat-setting, and quality inspection.
Fabric Options
Nylon-spandex (85/15) is the most common seamless yarn. Polyamide microfiber offers a silky hand feel. Cotton-covered elastane provides natural fiber feel with seamless technology. Moisture-wicking and anti-odor finishes can be applied post-production.
Cost and MOQ
Seamless underwear has a higher entry cost due to specialized machinery. MOQ is typically 2,000-5,000 pcs per style. However, lower labor costs partially offset the machine investment. Contact Unitex for seamless OEM pricing.
Related: capabilities →
· Xiamen Unitex Trade Co., Ltd. — OEM & ODM underwear sourcing partner
Unitex Underwear (Xiamen Unitex Trade Co., Ltd.) — OEM/ODM underwear sourcing and supply-chain partner in Xiamen, China; in the trade since 2009, incorporated in 2013.