Seamless knitting, fully in-house
Most "seamless" suppliers outsource the actual knitting. We don't. Yesseam runs circular seamless machines under our own roof, alongside cut & sew, dye-sublimation and finishing — a level of vertical integration that gives us control over fit, fabric hand-feel and lead time. That's why we describe ourselves as a vertically integrated seamless activewear factory in Xiamen, China: not a trading company, but a real seamless specialist.
Seamless construction knits the garment as a single tube with minimal stitching. The result is a genuine second-skin fit, fewer chafe points, better stretch recovery and a smoother look under clothing — the qualities premium yoga and training brands are built on.
What we make in seamless
Seamless leggings
- High-rise, V-waist and scrunch-butt seamless leggings
- Pocket & side-pocket seamless leggings
- Ribbed seamless and brushed "naked-feel" finishes
- 7/8, full-length, capri and bike-short lengths
Seamless sports bras & bralettes
- Light, medium and high-support seamless sports bras
- Longline, racerback and cross-back seamless bras
- Seamless bralettes and crop tanks
Seamless sets
- Coordinated legging + bra and legging + top seamless sets
- Ribbed seamless yoga and pilates sets
- Body-mapped 94/6 polyamide-elastane construction
Fabrics & specs
Our seamless yarns run 75–80% nylon / 20–25% spandex at 230–280 GSM with 4-way stretch, plus GRS-certified recycled options. The facility is BSCI audited and works with GRS and OEKO-TEX Standard 100 certified materials, under ISO 9001 quality management.
Quality, samples & lead time
- Quality: in-line & final AQL inspection, ISO 9001, BSCI, GRS & OEKO-TEX
- Samples: 7–10 days
- Bulk: 30 days standard, 15 days rush
- Shipping: worldwide air & sea, DDP to US, EU, UK, CA, AU
Private label & OEM/ODM
Apply your brand to proven seamless styles (private label), manufacture to your tech packs (OEM), or co-develop from our seamless library (ODM). See private label & OEM and our yoga apparel capabilities, or read the FAQ.