Skip to main content
Sunday
Glossary/Interlock vs jersey

What is Interlock vs jersey?

Interlock vs jersey: compare structure, weight, stretch and feel so you pick the right knit fabric for branded apparel that holds print and shape.

See your brand on merch

Create a free account to preview your branding across 500+ products with live pricing. No commitment required.

Get started

Definition

The difference between interlock vs jersey comes down to how the fabric is knitted. Jersey is a single knit with a clear right and wrong side and a tendency to curl. Interlock is a double knit, smooth on both faces, thicker, and more stable.

Definition

Both are weft knits, but the machine setup is different. Jersey uses one set of needles, so loops show on the front and purls on the back. Interlock interlocks two jersey fabrics during knitting, which hides the back and produces an identical surface on both sides. A 160 gsm jersey t-shirt feels light and drapey, while a 220 gsm interlock polo feels denser and keeps its shape after a full day of wear.

How interlock vs jersey works

Jersey is the workhorse of soft knitwear. The single-knit structure makes it light, breathable, and stretchy across the width, which is why most basic t-shirts use it. The trade-off is curling at the edges and less recovery, so cheaper jersey can twist or sag over time. Print sits well on a smooth jersey face, though very lightweight versions can show through.

Interlock trades some softness for stability. Knitting two layers together gives a thicker fabric with stretch in both directions, no curl, and better shape retention. It feels more premium and runs warmer, which suits polos, structured tees, and kidswear. The downside is cost and weight. You use more yarn, so interlock is more expensive per garment and less breathable in heat.

When you compare interlock vs jersey for branding, surface matters. Interlock gives embroidery a firm, even base and holds embellishment cleanly. Jersey is easier and cheaper to screen print at volume but needs care to avoid puckering. Your choice depends on the look, the budget, and how long the garment needs to last.

Interlock vs jersey in branded merch

  1. Everyday brand tees: Single jersey is the default for soft, affordable t-shirts in large runs where light weight and easy printing matter most.
  2. Polos and elevated staff wear: Interlock gives polos a smooth, structured finish that survives daily wear and looks sharp with an embroidered logo.
  3. Premium gift sets: Interlock reads as higher quality in onboarding kits and client gifts, where the heavier hand signals a considered, lasting piece.

Jersey is a single knit with a distinct front and back; interlock is a double knit that looks the same on both sides and feels heavier and more structured.

5 tips to elevate your Interlock vs jersey strategy

TipSteps
Match knit to purposePick jersey for light tees, interlock for polos and structured wear.
Check the weightRead gsm, not just the name. A heavy jersey can rival a light interlock.
Plan for brandingChoose interlock when embroidery and shape retention matter most.
Watch the budgetJersey costs less per unit, so it scales better for big print runs.
Test before bulkOrder a sample of both and wash it to compare curl, shrink and feel.

Key Terminologies

Jersey - A single-knit fabric with a distinct front and back, used for most soft t-shirts.
Interlock - A double-knit fabric that is smooth and stable on both sides.
GSM - Grams per square meter, the standard measure of fabric weight.
Combed cotton - Cotton with short fibers removed for a smoother, stronger yarn.
Pique - A textured knit common in polos, with a subtle raised pattern.

Frequently Asked Questions

Is interlock better than jersey?

Neither is better outright. Interlock is more stable and structured, while jersey is lighter and cheaper. The right choice depends on the garment and how you plan to brand it.

Which is warmer, interlock or jersey?

Interlock is warmer. The double-knit construction traps more air and uses more yarn, so it insulates better than a single jersey of similar fiber.

Does interlock or jersey shrink more?

Jersey tends to shrink and curl more because of its single-knit structure. Interlock is more stable, though both should be pre-washed or tested before a large order.

Which fabric is better for embroidery?

Interlock is the safer base for embroidery. Its firm, even surface supports stitches cleanly, while thin jersey can pucker without backing.

Can you screen print on both?

Yes. Both take screen print well. Jersey is easier and cheaper for high-volume runs, while interlock gives a flatter, more premium surface for the design.

Try Sunday

Instantly preview your brand across 500+ products

Create your free account and access our complete catalog in your branding with live pricing in 30 seconds.

Explore freely
Order when you're ready
Get started

Designs in 30 seconds · Free account · No credit card required