Japan World Cup Rash Guard designed for high-performance training and competition with compression fit and breathable fabric

Japan World Cup Rash Guard

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4.5/5 (10,000+ reviews)

$59.00 Sale Save
Nation Athletic Durable BJJ Rash Guards Stitching Icon

No stitch pops or money back

Perfect fit. Everytime.

No shrinkage

Easy & free size exchanges

Moisture Wicking Anti Bacterial Fabric

Anti-slip silicone waistband

Size XS

Domestic Shipping: 4-8 days (Friday cut off, excludes pre orders est. 5-6 weeks)

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The Japan World Cup Rash Guard is designed for competition, training, and everyday drilling. Built with high-performance compression fabric and a minimalist design trusted by athletes worldwide.


Key Features

  • Performance Fabric
    Soft, stretchy, moisture-wicking material designed to manage sweat and regulate temperature during no-gi training.
  • Flatlock Stitching
    Reinforced flatlock seams reduce irritation, abrasion, and seam failure during rolling and scrambles.
  • Breathable Construction
    Lightweight fabric promotes airflow during high-intensity rounds and extended sessions.
  • Secure Compression Fit
    Athletic compression provides support while allowing full range of motion.
  • Silicone Waistband Grip
    Internal silicone waistband helps prevent the rash guard from riding up during training.
  • Sublimated Graphics
    Fully sublimated design will not crack, peel, or fade with repeated use.
  • Antimicrobial Properties
    Moisture-wicking fabric helps reduce odor buildup after intense training.

Built for Training

This rash guard is built for daily no-gi training, open mats, and competition preparation. The fabric resists wear from constant mat contact while maintaining flexibility and comfort through repeated sessions.


Fit & Construction

Designed with a compression athletic fit that stays secure during movement. Flatlock stitching minimizes skin irritation, and the cut and sleeve length are optimized for grappling performance and prolonged wear.


Competition Suitability

This rash guard is suitable for competition-level use. It is constructed with durable performance fabric, reinforced flatlock stitching, and a secure compression fit designed to withstand high-intensity scrambles, constant friction, and extended match time.

The design has been stress tested during live training and competition rounds by experienced athletes, including black belt competitors, to ensure durability, fit stability, and performance under pressure.

This product is not IBJJF approved. Athletes competing in IBJJF events should wear IBJJF-compliant uniform gear as required by the event.


90-Day Quality Guarantee & Hassle-Free Returns

All Nation Athletic products are guaranteed for 90 days from the date of delivery. Manufacturing defects are eligible for replacement or refund. Free size exchanges are offered, and exchange shipping costs are covered by Nation Athletic.

See our shipping and delivery policy and 90-day refund and exchange policy for full details.

Durable Spandex/Polyester fabric blend
Elasticated waist band to prevent riding up
Lightweight Competition Rashguard
Compression material
Durable flatlock 4 needle stitching
Run slim, size up in instance quarantine beer and cookies have destroyed your diet

Wash cold
Hang dry
Do not machine dry

Frequently Asked Questions

A good BJJ rash guard should be durable, moisture-wicking, and designed to stay in place during hard training. Reinforced flatlock stitching and high-stretch fabric are essential for no-gi jiu jitsu, helping the rash guard hold up under pressure while allowing full mobility.

Yes. Nation Athletic BJJ rash guards are built for athletes who train 4–6 days per week and are designed to withstand repeated washing, intense rolling, and competition prep. They’re constructed using reinforced stitching and premium fabrics chosen to handle daily use and the physical demands of hard rounds. Our focus is long-term durability, so grapplers who train multiple times per week can rely on their gear holding up over time.

Absolutely. These rash guards are designed for no-gi BJJ but also work well for MMA, wrestling, and cross-training thanks to their compression fit, mobility, and abrasion resistance.

No. Nation Athletic rash guards are cut specifically for grappling and designed to stay in place during scrambles, guard work, and live rounds without bunching or riding up.

Many Nation Athletic rash guards are suitable for competition, but athletes should always check specific event rules regarding colors, branding, and uniform requirements before competing.

To extend the life of your BJJ rash guards, wash them cold immediately after training and hang dry when possible. Avoid high heat and fabric softeners to protect performance fabrics and stitching.

A BJJ rash guard should fit snug without restricting movement. Excess fabric can snag on smaller joints and cause discomfort, while a proper compression fit helps prevent the rash guard from riding up during training. This allows full mobility for guard play, scrambles, and transitions.

Rash guard sizing is typically determined by height and weight. If you are between sizes, we recommend sizing up, as compression fabric will still remain form-fitting. If you’re unsure, refer to our rash guard size guide to find the best fit for your build.

For no-gi jiu jitsu, rash guards are typically paired with grappling shorts or spats for full coverage and comfort. Many athletes match their rash guard with no-gi shorts for competition-ready mobility and a secure fit during scrambles and guard work. Our range of grappling shorts include velcro and non velcro closures.

Yes. Nation Athletic rash guards are designed to work equally well for beginners and experienced grapplers. Beginners often put more stress on gear due to less controlled movement, which makes durability especially important early on. At the same time, our rash guards are tested by high-level competitors to ensure they perform under intense training and competition conditions. This makes them a reliable choice at any stage of your jiu-jitsu journey.

Nation Athletic rash guards are designed for grapplers who train regularly and expect their gear to last. Instead of cutting costs on materials or construction, we focus on durability, functional design, and long-term wear. Our rash guards are tested by experienced grapplers, built with reinforced stitching, and made using premium fabrics chosen for both performance and longevity. We prioritize clean, modern designs over gimmicks, and we stand behind every piece with a quality guarantee.

Nation Athletic was founded by grapplers for grapplers. The brand was built by someone who trains, understands the demands of jiu-jitsu, and experienced firsthand how often gear fails under real use. From the beginning, the focus has been on supporting everyday athletes — people balancing work, family, and training — rather than relying on hype or manufactured influencer marketing. Every product reflects that practical, training-first mindset.

See our full story here