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Self-bound seam
A seam finish in which one allowance is trimmed narrow and the wider allowance is folded over it and stitched down, enclosing both raw edges without extra binding.
advanced · Seams
Selvedge denim
Denim woven on a narrow shuttle loom that produces a tightly finished, self-edged fabric border, prized for durability and reduced fraying.
advanced · Jeans & workwear
Sequined fabric
A base fabric, usually mesh or knit, with sequins stitched or glued on in rows, requiring seam allowances to be cleared of sequins before stitching.
advanced · Speciality fabrics
Serger tension problems
Loose loops hanging off a serged edge, or an edge that curls and puckers, points to the tension dials being out of balance for the thread and fabric. Adjust one dial at a time on a scrap.
advanced · Stitch & thread problems
Servo motor (sewing machine)
An energy-efficient electric motor for industrial machines that starts instantly at the set speed and stops precisely, unlike a continuously spinning clutch motor.
advanced · Industrial machines
Set-in sleeve draft
A sleeve draft producing a sleeve attached to the bodice along a separate armhole seam encircling the shoulder, the most common sleeve construction in tailored and woven garments.
advanced · Drafting sleeves & collars
Shawl collar
A collar cut in one piece with the front facing, curving continuously around the back neck without a notch, typical of tuxedo jackets and cardigans.
advanced · Collars & necklines
Sheer fabric shifting
Fine, sheer fabric sliding out of alignment or getting pulled into the feed dogs comes from its light weight offering little resistance. Sew between two layers of tissue paper or use a straight-stitch throat plate.
advanced · Fabric handling problems
Shell tuck
A small tuck stitched and then pulled with an overcast or zigzag stitch to create a scalloped, shell-like bump along an edge, used decoratively on lingerie and blouses.
advanced · Topstitching & decorative
Shuttle bobbin
A long, torpedo-shaped bobbin used in vibrating and transverse shuttle machines, distinct from the round bobbins used in modern rotary hooks.
advanced · Vintage machines
Silk Road textile trade
A network of trade routes connecting China to the Mediterranean from around the 2nd century BCE, through which silk, dyes, and weaving techniques spread across Asia, the Middle East, and Europe.
advanced · Textile history
Silk thread
A fine, strong, slightly elastic natural filament thread with a subtle sheen, traditionally used for hand basting, tailoring and hand-finishing fine fabrics.
advanced · Threads & needles
Sleeve draft
The process of constructing a sleeve pattern to fit a corresponding armhole, calculating the sleeve cap height and width so that its ease matches the armhole's circumference.
advanced · Drafting sleeves & collars
Sleeve head
A strip of wadding or bias-cut fabric inserted into the sleeve cap seam to support the ease and maintain a smooth, rounded shoulder shape.
advanced · Tailoring
Sleeve pitch
The forward or backward tilt of a sleeve pattern relative to the bodice side seam, affecting whether the sleeve hangs naturally in line with the wearer's arm.
advanced · Drafting sleeves & collars
Sloper
The American term for a basic, made-to-fit pattern with no seam allowances or style lines, used as a foundation when drafting new pattern designs; called a block in British usage.
advanced · Pattern terms
Smocking
A decorative technique that gathers fabric into small, controlled folds secured with embroidery stitches, both shaping and ornamenting the surface.
advanced · Shaping (darts, gathers, pleats, tucks)
Spec sheet
A document listing a garment's precise measurements at every key point, used by a manufacturer to keep sizing consistent across a production run.
advanced · Industry & business terms
Suit jacket
A tailored, structured jacket cut to match trousers as part of a matched suit, featuring lapels, a canvassed front, and set-in sleeves.
advanced · Children & menswear