Construction
Seamless Yoga Leggings
Knitted in the round with no side seam, for a smooth line under a top and less bulk at the hip.
How it is built
Knitted in the round, which changes the whole size range
Seamless here means what it means in the trade: the tube is knitted in one pass on a circular machine, so there is no side seam to sew and no seam allowance to allow for. The waistband, the body and the gusset are different knit structures worked in sequence on the same machine, which is how one piece can be firmer at the waist and softer through the leg.
The consequence a buyer feels first is that sizing is not a scale factor. A cut-and-sew legging is graded by adjusting a pattern; a seamless one is set by the cylinder the machine knits on, so each size is closer to its own programme. That is why seamless ranges are often shorter, and why the size range has to be agreed before the style is.
Machine gauge
Needles per inch. A finer gauge gives a denser, smoother surface; a coarser one gives more texture and more loft.
Zone structure
The knit changes at set points up the tube. Where those points sit is a design decision, not a fixed property of the machine.
Gusset
Knitted as part of the tube, or cut and sewn in afterwards. The first is smoother; the second is easier to change on a repeat order.
No seam allowance
Measurements are finished measurements. There is no allowance to hide a fit correction in, so a fit round matters more here than on a cut-and-sew style.
What to specify
What a seamless order has to settle
Fabric and colour run through every style we make, so they are covered on the fabric page. These four are the ones this cut adds.
The size range, before anything else
Each size is a separate knit programme, so adding a size later is a development step rather than a pattern edit.
Gauge
Decides density, opacity and how the surface reads against a print or an emboss.
Compression zones
How firm the waist is against how firm the thigh. Two brands can want the same silhouette with very different zone structure.
Gusset method
Knitted or sewn, which trades smoothness against how easily the style can be adjusted afterwards.
What to send
Seamless brief, in three items
Send these and the reply carries a price. Leave one open and it usually comes back as a question, because the answer decides which fabric and which construction gets quoted. Two routes reach a seamless order: pick a style from the range and change the fabric, colour, print or trims, which is OEM and ODM; or come with your own label, colours and packaging, which is private label.
Leggings on file
A sample of the range
The constructions above are made to order rather than held in stock. These are legging styles currently on file, to show the fabrics and colour directions in use.
Questions buyers ask about this cut
Seamless leggings, answered
Is seamless better than cut-and-sew?
They solve different problems. Seamless removes the side seam and the bulk at the hip and is very smooth under a top; cut-and-sew offers a wider size range and much easier fit correction. Which is better depends on the range, not on the construction being newer.
Why do seamless ranges come in fewer sizes?
Because each size is a separate knit programme set by the machine cylinder rather than a pattern graded up and down. Extending the range is development work, so it is usually agreed at the start.
Can seamless be printed?
Printing is done on the finished knit like any other fabric, so yes — but the knit surface is less flat than a cut-and-sew cloth, which softens fine detail in the artwork. A larger, simpler print holds up better.
Fabrics
What the fabric is specified in
Four parameters decide whether a legging feels right and stays opaque. They are agreed before sampling so the first sample is judged against a number rather than an impression.
Other constructions