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PTT Stretch Thread
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Last discussed Jun 28, 2026
PTT (polytrimethylene terephthalate) is a stretch thread used in garment construction that allows seams to stretch without breaking, providing durability in high-movement areas.
Recently discussed in
How I made the World's Best Black Shirt
Shift Fashion Group · Jun 28, 2026
What creators say
Shift Fashion Group
uses
Used for: Used for all seams in the shirt to allow stretching without breakage
Praised: Allows seams to stretch without breaking
"All of our seams here use a PTT stretch thread. That stretch thread allows you to stretch that seam without fear of any breakage."
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