Set-In Sleeve
Construction — one of 70 in the glossary
The standard sleeve construction, where a separately cut sleeve is sewn into a finished armhole with a seam that circles the shoulder joint. It gives a defined shoulder line and a tailored look, and it is what almost every t-shirt in the catalogue uses. For decorating it matters because the shoulder seam is where a print area ends: a design that runs onto a set-in sleeve crosses a raised seam that a platen cannot lie flat against. Raglan sleeves, which run diagonally to the neck, are the main alternative.
A sleeve sewn into a finished armhole
The body panels are joined at the shoulder first, creating a complete armhole. The sleeve is then cut separately and sewn into it with a seam that circles the shoulder joint.
That seam sits roughly where the shoulder bone ends, which is what gives the garment a defined shoulder line.
It is the standard construction on t-shirts, shirts and most jackets, which is why it usually goes unmentioned on a spec sheet — its absence is what gets stated.
Against a raglan
A raglan runs the sleeve in one piece up to the neckline on a diagonal seam, which frees the shoulder and softens the silhouette.
A set-in sleeve restricts the arm slightly more and looks more structured. Neither is better; they suit different garments.
For decorators the relevant difference is print area: a set-in sleeve leaves a clean rectangular chest, where a raglan's diagonal seam cuts into the top corners.
Common questions
- What is a set-in sleeve?
- A separately cut sleeve sewn into a finished armhole, with a seam circling the shoulder joint. It is the standard construction on t-shirts and shirts.
- What is the difference between a set-in sleeve and a raglan?
- A raglan is cut in one piece with the shoulder and joined on a diagonal to the neckline, freeing the shoulder. A set-in sleeve gives a more defined, structured shoulder line.
- Which is better for printing?
- A set-in sleeve, marginally — it leaves a clean rectangular chest area, where a raglan's diagonal seam cuts into the top corners of the print space.
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