How Our Sublimated Rashguards Are Made in Slovenia

Ever wondered why the print on some rashguards cracks after a month, while others look new after a year of rolling? It comes down to how the design gets onto the fabric. A sublimated rashguard has its colors inside the fibers, not sitting on top of them.

Short answer: A sublimated rashguard is printed with dye-sublimation. The design is printed on transfer paper, then heat and pressure move the dye into the polyester fibers. Because the color becomes part of the fabric, it won't crack, peel or feel stiff, even when the shirt stretches hard during training.

What is a sublimated rashguard?

Most printed T-shirts use screen printing or heat transfer vinyl. Both put a layer of ink or film on top of the fabric. That layer is less stretchy than the shirt, so over time it cracks, especially on clothes that stretch a lot.

A sublimated rashguard works differently. The dye goes into the fabric itself. There's no extra layer, so there's nothing to crack or peel off.

That's also why sublimated designs can cover the whole shirt. Sleeves, side panels, seams, the lot. If you've seen a rashguard with a full camo pattern or artwork wrapping around the ribs, it was almost certainly sublimated.

It also keeps the shirt comfortable. A big rubbery print on your back doesn't breathe, and it can feel like a sticker glued to your skin after a hard round. With sublimation, the printed parts feel exactly like the rest of the fabric. You'd struggle to find the edge of the design with your eyes closed.

How dye-sublimation works

You don't need a chemistry degree for this. Here's the simple version.

1. Print on paper. The design is printed on special coated transfer paper, as a mirror image, using sublimation inks.
2. Heat and press. The paper is laid on the fabric and pressed with heat. Common sublimation dyes activate at around 175 °C, and somewhat higher temperatures are often used for the best color.
3. Dye moves into the fiber. Under heat and pressure, the dye leaves the paper and diffuses into the polyester. When it cools, the color is locked inside the fiber.

The name comes from the old idea that the dye skips straight from solid to gas. In reality, there's a bit of liquid stage too, so some people call it dye diffusion. Either way, the result is the same: the print and the fabric become one.

Why it only works on polyester

Sublimation dyes bond with synthetic fibers like polyester. They don't bond the same way with cotton. That's why every sublimated rashguard you'll find is made from polyester or a polyester blend.

Lucky for us, polyester is exactly what you want on the mats anyway. It's light, dries fast and doesn't soak up sweat like a cotton tee.

Sublimated rashguard vs printed rashguard

Here's a quick comparison so you know what you're buying.

	Sublimated rashguard	Screen print or vinyl
Where the color sits	Inside the fibers	On top of the fabric
Cracking and peeling	No	Common over time
Feel	Same as the fabric	Stiffer where printed
Breathability	Unchanged	Lower under big prints
Full-coverage designs	Yes, edge to edge	Usually limited areas
Fabric	Polyester blends	Most fabrics

For a shirt that stretches, gets grabbed and goes through the wash a few times a week, the sublimated rashguard wins pretty easily.

How we make every sublimated rashguard in Slovenia

Every Tribe Alpha piece is made to order in Slovenia. Nothing sits in a warehouse waiting for you. When you order, your rashguard goes through the same steps as every other one.

1. Printing the design

Your design is sublimation printed, so the colors end up in the fabric. Whether it's a club logo, a camo pattern or a belt color stripe, it goes through the same process.

2. Cutting and stitching

The printed fabric is cut and stitched into a finished top. We use reinforced seams and a chafe-resistant build, because seams take a beating when someone's pulling on your sleeve.

3. Quality check

Every piece is checked before it leaves. Then it's packed and sent with GLS courier. Made-to-order items usually ship within about 10 working days.

The fabric we use

Our rashguards use 85% polyester and 15% elastane at 230 g/m². The polyester takes the sublimation print. The elastane gives the stretch and the snug compression fit you want for grappling.

Our workshop sits in Šentjanž pri Dravogradu, in the Koroška region. It's a small corner of Slovenia, and it's where your sublimated rashguard is made.

A few honest limits of sublimation

No print method is perfect, and it's fair to know the trade-offs.

• White comes from the fabric. Sublimation inks are see-through, so white parts of a design are simply unprinted fabric. That's why sublimation is done on white or very light fabric.
• It needs polyester. You won't get the same result on cotton or natural fibers.
• Tiny white lines can appear. If fabric folds during pressing, a thin unprinted line can show up. That's one reason every piece gets a quality check.

None of this matters much on the mats. You get a light, fast-drying top with a print that lasts as long as the shirt does.

Why sublimation matters for club and custom gear

Sublimation doesn't need printing screens for each color. That makes it a great fit for small runs and one-off pieces.

It's the reason we can make a single custom rashguard with no minimum order. Club orders start at 10 pieces, and you can mix products and sizes. If you're planning gear for your team, our guide on custom team rashguards explains how ordering works.

Want something just for you? Have a look at our custom gear, where you upload your own logo and get a 3D mockup to approve before production.

How to make a sublimated rashguard last

The print itself is tough, but the fabric still likes a bit of care. Elastane doesn't love heat.

• Turn it inside out and wash it cold.
• Skip fabric softener, which can clog the fibers.
• Hang it to dry. No tumble dryer, no radiator.
• Wash it after every session. Your training partners will thank you.

For the full routine, read our post on how to wash a rashguard.

Quick answers

Does a sublimated rashguard fade?

The print is very resistant to fading in normal use because the dye sits inside the fiber. High heat and harsh chemicals are the main things to avoid.

Can you sublimate on cotton?

Not well. Sublimation dyes bond with polyester and other synthetic materials. That's why a sublimated rashguard is always polyester or a polyester blend.

Will the print crack when the rashguard stretches?

No. There's no ink layer on top, so there's nothing to crack. The design stretches with the fabric.

Why is a sublimated rashguard good for custom designs?

There are no screens to set up for each color. That makes full-color, edge-to-edge designs practical even for one piece.

Wrap-up

A sublimated rashguard keeps its colors in the fabric, so the design moves, stretches and washes with you. That's why we print every piece this way, then stitch and check it in Slovenia before it ships.

Ready for one? Browse our rashguards, made to order in sizes XS to 2XL. Not sure which size? Our rashguard size guide has the full chart.