Why Tesshin Rash Guards Feel Different: Designed From the Ground Up

Most BJJ Rash Guards Start with a Factory Template. Ours Started with a Blank Page.

Here's how to start your own BJJ brand, just like how most brands do: 

1. Walk into many sportswear factories and choose an existing rash guard template.
2. Choose a pattern.
3. Change the colours.
4. Add your logo.
5. Print new artwork.
6. Launch a "new" collection.

The graphics may change, but the construction underneath often remains largely the same.

There is nothing inherently wrong with that. Old patterns save time, reduce development costs, and produce reliable products.

But that wasn't the path we wanted to take.

When we created Tesshin, we didn't begin by asking, "What should our rash guard look like?"

We asked a much more important question:

"If we designed a BJJ rash guard from scratch today, adding everything we want as grapplers, how would we build it?"

That single question shaped every decision that followed.

Why We Started from Zero

A rash guard isn't just another piece of clothing. It's one of the few things you're wearing during every grip fight, every scramble, every takedown, every escape, and every submission.

It stretches, twists, traps heat, absorbs sweat, slides across rough mats.

Yet many rash guards treat every part of the body exactly the same. The shoulders are made from the same material as the ribs, the lower back performs the same job as the chest — every panel shares the same purpose.

We didn't think that made sense. The human body isn't uniform, your rash guard shouldn't be either.

So instead of modifying an existing pattern, we deconstructed the rash guard into its fundamental components and rebuilt it from the ground up.

Every panel, seam, curve, angle.

Every decision was made with a purpose.

Engineering a Better BJJ Rash Guard

Rather than asking fabric to solve every problem, we asked each part of the rash guard a different question:

What does this area of the body actually need?

That thinking led to our proprietary 10-panel ergonomic construction — nearly double the number of panels found in most standard rash guards.

Each panel performs a specific role. Some improve ventilation, some increase durability, some enhance mobility, some provide additional support where your body works hardest.

Together, they create a rash guard that feels more natural in motion because every section has been engineered with a purpose.

Our design includes:

• Adaptive thermo-weave mesh for premium breathability
• Strategic ventilation zones where heat builds up most
• Reinforced abrasion panels in high-contact areas
• Compression-tuned sections for improved support and mobility
• Moisture-wicking fabrics that stay lighter throughout training
• Silicone waistband grips that help prevent the rash guard from riding up during scrambles
• Ergonomic panel shaping that moves naturally with the body

No unnecessary features or decorative seams. Every detail exists because it solves a problem.

Different Parts of Your Body Need Different Fabrics

Imagine building a racing car using only one material, it wouldn't make much sense.

Different components require different strengths. The same philosophy applies to a BJJ rash guard.

Expecting one fabric to excel everywhere means accepting compromise everywhere.

Instead, we tested a wide range of fabric blends, densities, and constructions until each area of the rash guard had the material best suited to its purpose.

That means:

• Lightweight fabrics where airflow matters most.
• Denser materials where durability is critical.
• Stretch-focused textiles around major movement zones.
• Cooling weaves where heat accumulates fastest.

Rather than asking one fabric to do everything, we let every fabric do what it does best.

Built for Hong Kong. Ready for Anywhere.

Designing in Hong Kong meant solving challenges that many brands rarely consider.

Heat. Humidity. Long training sessions. Sweat that never seems to stop.

These conditions became our testing ground.

Our proprietary ventilation system was developed specifically to improve airflow in one of the world's most demanding training environments.

If it performs here, we're confident it will perform almost anywhere.

Every Detail Serves a Purpose

Once the engineering is complete, every remaining step exists to preserve that work. Nothing is chosen because it's fashionable.

Everything is chosen because it contributes to performance.

Premium Italian Sublimation Printing

Our artwork is transferred using premium Italian sublimation inks.

Rather than sitting on top of the fabric, the ink permanently bonds with the fibres under heat and pressure.

The result is:

• Colours that remain vibrant after repeated washes.
• Graphics that won't crack or peel.
• A finish that's smooth, lightweight, and impossible to feel during training.

The artwork becomes part of the fabric itself.

Precision Laser Cutting

Every panel is cut using industrial laser equipment to ensure uncompromising consistency.

Laser cutting allows us to maintain clean edges, accurate dimensions, and repeatable precision across every production run.

When each panel has been engineered so carefully, accuracy matters.

Reinforced Flatlock Stitching

A rash guard is only as strong as the seams holding it together.

That's why every Tesshin rash guard is assembled using reinforced flatlock stitching.

Flatlock construction:

• Reduces skin irritation.
• Creates stronger, lower-profile seams.
• Distributes stress more evenly during grappling.
• Improves long-term durability under constant stretching and pulling.

Every seam has a purpose.

Crafted on Japanese Sewing Machines

Our rash guards are assembled using premium Japanese sewing machines operated by skilled technicians experienced in performance sportswear.

Technology creates consistency. Human experience creates quality.

We believe both matter.

Quality Isn't Inspected In. It's Built In.

Before any Tesshin rash guard reaches its packaging, it is inspected by hand.

We examine:

• Stitch quality
• Panel alignment
• Colour consistency
• Print accuracy
• Overall finish
• Fabric feel

Only after meeting our standards is a rash guard approved for shipment.

Because quality control shouldn't begin when a product is finished, it should exist throughout the entire process.

The Tesshin Standard

We don't believe great products happen by accident.

They happen through relentless refinement.

Every production run teaches us something.

Every athlete gives us feedback.

Every prototype raises another question.

How can this be better?

That pursuit influences everything we do.

Better materials, machinery, manufacturing partners, construction methods, design.

Not because today's rash guard isn't good enough, but because tomorrow's should be even better.

Discipline isn't repeating yesterday's work. It's refusing to accept yesterday's standard.

More Than a Rash Guard

Our goal was never to make another BJJ rash guard.

Our goal was to rethink what a rash guard could become when every decision starts with purpose instead of convenience.

The result isn't just different because it looks different. It's different because it was designed differently.

Most BJJ rash guards begin with a factory template. Ours began with a blank page.

Because if you're willing to train differently, you deserve gear that's built differently.

FAQ — Frequently Asked Questions

A: Tesshin rash guards are built using a proprietary 10-panel ergonomic construction rather than a conventional multi-purpose pattern. Each panel is designed to improve fit, mobility, ventilation, or durability.

A: Using more panels allows us to tailor different areas of the rash guard to the way the body actually moves during Brazilian Jiu-Jitsu, creating a more ergonomic fit and better overall performance.

A: Yes. Different areas of the rash guard use different fabric constructions chosen for breathability, stretch, durability, or moisture management depending on their purpose.

A: Sublimation printing permanently bonds ink into the fabric fibres instead of printing on the surface. This creates vibrant colours that won't crack, peel, or fade with normal training and washing.

A: Flatlock stitching creates low-profile seams that reduce skin irritation while improving durability under the constant stretching, pulling, and abrasion experienced during grappling.

A: Every Tesshin rash guard is engineered with reinforced construction, premium materials, flatlock stitching, and multiple quality inspections to withstand the demands of regular BJJ training and competition.

Every Tesshin rash guard is engineered from the ground up. Not simply to look better, but to perform better where it matters most.

Experience our proprietary 10-panel ergonomic construction, advanced ventilation system, premium materials, and competition-ready craftsmanship for yourself.

Shop the Tesshin Rash Guard Collection and train in gear designed without compromise.