Seamless Activewear Manufacturer

A seamless activewear manufacturer knits garments on circular seamless machines as a single tube with minimal stitching, producing leggings, sports bras and sets with a second-skin fit, fewer chafe points and better stretch recovery. Yesseam knits seamless fully in-house in Xiamen, China.

Yesseam is a real, vertically integrated seamless factory in Xiamen, China. We run our own circular seamless knitting, cut & sew, dye-sublimation and finishing in-house, and we welcome factory audits — so you work directly with the people who make your garments, not a middleman.

Activewear knitted to shape on circular seamless machines instead of being cut from fabric and sewn. Each piece leaves the machine already tubular, its waistband, compression zones and textures built into the knit, so it has no side seams, fewer chafe points and a smooth, second-skin fit.

A matching top and bottom — typically a sports bra or tank with leggings or shorts — both knitted seamless. In a well-made set the two pieces are knitted from the same yarn and dyed together, so the colours match exactly rather than nearly.

From 50 pieces per style for stock styles without a logo, 100 pieces per style with your logo, and 500 pieces per style for full custom development. The full breakdown, with sample costs and lead times, is on our pricing page.

Development samples take 7–10 days and cost around US$30–80 per style. Fabric swatches are free and ship within 48 hours, which is the quickest way to judge a knit before committing to a sample.

Yes. Bodysuits and unitards are knitted as one long tube from neckline to crotch, with the bust, waist and hip zones programmed into the knit, and then closed at the crotch.

In Xiamen, Fujian, China, where we run circular seamless knitting alongside cut-and-sew, dye-sublimation and finishing. We welcome video walk-throughs and factory audits before an order.

Yes. We knit seamless briefs, thongs, boyshorts and high-waist briefs, and shapewear such as sculpting bodysuits and shaping shorts, on the same machines and yarns as our activewear, with cotton-lined gussets. Minimums follow the same structure as the rest of the range: 50 pieces per style plain, 100 with your logo, 500 for full custom.

Yes. The usual men's pieces are compression tops and base layers, training shorts and boxer briefs. The knitting is the same as for women's styles; what changes is the sizing, the compression level and, on underwear, a contoured front shaped in the knit.

A T-shirt or top whose body comes off a circular knitting machine already tubular, with no side seams; where there are sleeves, they are linked on at the shoulder. It fits closer than a cut-and-sew tee and is mostly used for training tops and base layers.

Ask for a live video walk-through of the knitting floor with the machines running, samples knitted on the factory's own machines, and the gauge and cylinder size it would use for your style. A trading company can show finished goods but not its own knitting floor. We welcome video walk-throughs and factory audits before an order.

Santoni seamless circular knitting machines, mainly the SM8-TOP2V — 50 in total, in 28G and 32G, with cylinder diameters from 17 to 21 inches. Cutting, sewing and finishing run alongside on our own equipment, including 40 flatlock (4-needle, 6-thread), 40 overlock and 45 single-needle lockstitch machines.

That depends on the cylinder. Our seamless machines run cylinders from 17 to 21 inches, and each diameter covers its own band of body sizes. Send your size chart and we will confirm which cylinders your range needs — a very wide range can need two, which means two machine set-ups.

Our standard seamless blend is 90% nylon (polyamide) and 10% spandex (elastane). A seamless garment is knitted rather than cut from finished fabric, so the elastane runs through every course and about 10% gives enough stretch; cut-and-sew fabric needs more, which is why ours runs 75/25. Other yarns, including GRS-certified recycled nylon, can be specified for custom development — the yarn guide covers how polymer choice changes hand-feel and recovery.

Our published benchmark of 3,038 catalogue styles puts the median FOB price at $8.50 for leggings, $7.90 for a sports bra or top and $14.90 for a two-piece set. Yarn and spandex share, construction details, finishing and packaging move a quote up or down, and minimums are 50 pieces per style plain, 100 with your logo and 500 for full custom development. Category ranges are in the price benchmark.

Garment-size seamless knitting runs mostly on Santoni machines from Brescia, Italy, part of the Lonati Group; Chinese builders such as Zhejiang Rifa and Sintelli (XINDA) make machines for the same job. Our own floor is 50 Santoni machines, mainly the SM8-TOP2V. Whichever factory you assess, ask for the machine count, model and gauge, and a video of those machines running — see seamless machine makers compared.

Yes — seamless gym wear is the core of our range: leggings, sports bras, tanks, shorts and matching sets, knitted in Xiamen and sold under our clients' own labels. You can brand our stock seamless styles or develop your own; minimums are 50 pieces per style plain, 100 with your logo and 500 for full custom. The private label route is the lowest-risk first order.