Textile Glossary · Construction · Yarn Structure
Ply (Single & Double)
Ply refers to the number of individual yarn strands twisted together to form a single thread. Single-ply uses one strand; two-ply twists two strands together for increased strength and uniformity.
Understanding the Term
One strand or two — why it matters.
A single-ply yarn is one continuous strand of spun fibres. A two-ply yarn takes two single-ply strands and twists them together in the opposite direction. This counter-twist creates a more balanced, stable, and stronger thread.
For t-shirt fabric, single-ply is the standard. The yarn count is chosen to produce the desired fabric weight in one strand. Two-ply is more common in dress shirts, socks, and knitwear where extra strength and surface refinement are priorities.
The choice between single and two-ply involves trade-offs. Two-ply is stronger and more pill-resistant but also heavier and more expensive per metre. For a 180 GSM t-shirt, single-ply in high-quality Supima cotton provides ample strength without the weight penalty.
Why It Matters
How ply affects fabric performance.
The structural choice inside the yarn.
01
Strength
Two-ply yarn is roughly 40% stronger than single-ply of the same total weight. The counter-twist locks the strands together.
02
Pill Resistance
Two-ply yarn has fewer loose fibre ends on the surface, reducing pill formation. But high-quality single-ply from long-staple cotton achieves excellent pill resistance on its own.
03
Weight Efficiency
Single-ply achieves the target GSM with less raw material. For t-shirts, this means a lighter, more breathable garment.
Our Standard
Single-ply Supima — strength without weight.
Our ring-spun Supima yarn is single-ply. With 35mm+ staple length and combed preparation, our single-ply yarn achieves tensile strength comparable to two-ply conventional cotton. The extra-long fibres provide the cohesion that shorter fibres need ply-twisting to achieve.
1
Ply
Single-ply — Supima's length provides inherent strength
Related Terms
Explore more textile terminology.
See how Supima compares:
Common Questions
Ply — your questions, answered.
Understanding yarn construction.
For dress shirts and fine knitwear, often yes. For t-shirts, the extra weight of two-ply works against the light, breathable feel you want. Single-ply in premium cotton is the better choice.
See It in Practice
Single-ply Supima.
Light, strong, refined.
The fibre does the heavy lifting. The ply stays light.
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