“Seamless” means three quite different things on a factory floor. We knit two of them on our own machines in Gaziantep and quote them side by side, so you can pick on fit, cost and pattern rather than on which one sounds most advanced.
“Seamless knitwear” is a buyer's term, not a machine specification. Brands writing to us for a seamless knitwear manufacturer usually mean one of three genuinely different constructions — and the right one depends on the silhouette, the target price and the fibre, not on which technology carries the most prestige.
This page puts the three routes next to each other: what each does to your cost, what each does to your pattern, and when each is the right call. If you already know you want true single-piece construction, the technology detail lives on our WHOLEGARMENT knitwear manufacturer page — WHOLEGARMENT is Shima Seiki's registered trademark for a specific machine technology, while seamless is the wider generic word for the whole no-seam and low-seam family. We keep the two apart on purpose, because the difference decides your quote.
The machine knits the body and both sleeves at once across four needle beds and joins them while knitting. It comes off three-dimensional and essentially finished: no side, shoulder or armhole seam, nothing to link. This is what Shima Seiki markets as WHOLEGARMENT, and we run it in-house. It is the slowest per machine hour — which is why it sits at the top of the cost table.
Each panel is knitted to its final shape — the machine adds and drops needles to form the armhole, sleeve cap and neckline, so nothing is cut — then panels are joined stitch-for-stitch on a linking machine. There are seams, but they are flat linked joins along a knitted selvedge, not overlocked cut edges. Most premium knitwear is built this way. More on fully-fashioned.
Knit fabric is produced by the metre, laid up, cut against a marker and sewn together on conventional machines. Quick for jersey-weight product, but every panel edge is a raw cut edge and the marker leaves offcuts. Our own floor is flat-knit only, so this is not a route we knit ourselves — jersey and loungewear ranges run through our vetted knit partner network, and the full comparison is on our flat-knit vs cut-and-sew page.
If your brief could go either way, say so — we will sample it both ways before you commit. Cheaper than a bulk order in the wrong construction.
Basic fully-fashioned crew $8–14; textured or patterned $14–22; low-gauge chunky $12–20; single-piece seamless $18–30. CMT only — yarn quoted separately at market.
A seamless style is one three-dimensional programme rather than a set of flat panels, so the engineering load sits on the first style. A repeat of the same style does not carry that development work again — the programme is already on file.
Seamless has no seam allowance to let out: a fit change is reprogrammed, not re-cut. Budget one extra fit cycle on a first seamless block. Fully-fashioned lets us adjust panel width between samples.
250 pieces per colour and per size, whichever construction you pick. One style in three colours across five sizes is 3,750 pieces. Machine time differs; the minimum does not.
Knitting to shape has one physical consequence marketing can neither add nor remove: the machine produces the piece at its final shape, so there is no cutting marker and essentially no cut-off waste. Single-piece seamless removes the linking allowance too; fully-fashioned keeps a small one; cut-and-sew keeps both.
We call it near zero-waste rather than zero-waste, and you should hear the caveat from us rather than from an auditor: set-up yarn, waste courses and rejects still exist.
We run 22 dedicated flat-knit machines — 15 Shima Seiki, including WHOLEGARMENT, and 7 Stoll CMS — at gauges from 3gg to 14gg, with 50+ in-house staff and a monthly capacity of around 100,000 pieces. That mix is the point of this page: because seamless and fully-fashioned both sit on our own floor, the same team quotes you both against one tech pack instead of steering you toward whatever is installed.
Two things we say plainly. We are a pure knitwear manufacturer — flat-knit in-house, no woven categories at all. And where a style falls outside our own machine envelope — jersey, loungewear and adjacent knit ranges — it runs through our vetted knit partner network, disclosed to you as such rather than passed off as our own floor. Equipment detail on capabilities; finished programmes on our work.
WHOLEGARMENT is Shima Seiki's registered trademark for its single-piece knitting technology, where the body and both sleeves are knitted at the same time and joined on the machine. Seamless is the generic word buyers use, and it covers a wider family: true single-piece knitting at one end, and fully-fashioned knit-to-shape construction with a few flat linked joins at the other. Every WHOLEGARMENT garment is seamless; not everything sold as seamless is WHOLEGARMENT. Full technology detail here.
Per unit, yes. Our CMT band for single-piece seamless runs $18–30, against $8–14 for a basic fully-fashioned crew neck and $14–22 for a textured one — CMT only, yarn separate. Seamless removes linking labour entirely, but the machine holds the garment far longer, and that lower throughput dominates the maths.
250 pieces per colour and per size — the same minimum as every other construction we run. One style in three colours across five sizes is 3,750 pieces. Sampling has no minimum: protos are single units at $80–180 depending on complexity.
No, and we say so at feasibility rather than after a failed sample. Heavy intarsia colourwork, very chunky low-gauge structures and heavily blocked silhouettes are better served by fully-fashioned, which reaches most of the same look at a lower CMT. Single-piece seamless is strongest on clean, modern silhouettes at fine and mid gauges.
Knitting to shape means there is no cutting marker and essentially no cut-off waste — the machine makes the piece at its final shape. Single-piece seamless removes the linking allowance too. It is a real reduction at source, not an offset. We call it near zero-waste, not zero-waste: set-up yarn, waste courses and rejects still exist.
Merino and extra-fine merino for next-to-skin layers, cashmere and luxury blends for elevated pieces, cotton blends for trans-seasonal styles. Our machines cover 3gg to 14gg; seamless is best at fine and mid gauges. We propose yarn and gauge against your tech pack.
Sampling is 10–14 days at $80–180 depending on complexity. Bulk runs 45–60 days from sample approval. For European buyers, TIR road freight adds 5–7 days, on an A.TR movement certificate under the EU Customs Union.
More sourcing answers on our general FAQ.
Send your tech pack, a sketch or a garment you like. We reply within one business day with feasibility, an indicative CMT range for each viable construction, and an honest recommendation.