Grappling Nation

Oni The Japanese Demon Rashguard

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In stock
Size: XS
Long ago in Japan, there lived a powerful and fearsome demon known as Oni. Oni was believed to have been born from the anger and hatred of the gods, and its appearance was that of a terrifying creature with sharp horns, red eyes, and a menacing scowl. The people of Japan feared the demon and told tales of its wickedness and cruelty.

Oni was said to roam the countryside, terrorizing villages and towns, and causing destruction wherever it went. Its powers were so great that it could conjure up storms and earthquakes, and it was said to have the ability to possess humans and control their minds.

Despite its fearsome reputation, some people were drawn to Oni's power and were willing to make deals with the demon. These people would offer up sacrifices and make pacts with Oni in exchange for wealth, power, and other worldly desires.

Made with high-quality materials and designed with the athlete in mind, this rashguard provides superior comfort and protection during even the most intense grappling sessions. With its sleek and stylish design, it's a must-have addition to any BJJ enthusiast's training gear.

• 82% polyester, 18% spandex
• Very soft four-way stretch fabric that stretches and recovers on the cross and lengthwise grains
• UPF 50+
• Comfortable longer body and sleeves
• Flat seam and coverstitch


When can I expect my order to arrive?

Deliveries within the US and Canada take approximately 3-5 business days, while international deliveries typically arrive within 7-14 business days.

Need a different size? No problem! Here's what to do within 30 days of receiving your item:

  • Ensure the item is unworn and un-washed (except for trying it on).
  • Contact with your location info to receive the nearest return warehouse address.


Return shipping fees, import tax, and restocking fees are the customer's responsibility unless it's our error.

  • Our customer service team will handle your return/exchange.
  • request on a case by case basis and may ask for pictures and additional information.

Returning for a Refund:
If you'd like to return the item for a refund, please do so within 30 days of receiving it. Keep in mind that shipping costs are non-refundable. See our Refund Policy for details.

Wrong Size or Defective Item Received:
We apologize if you received the wrong size or a defective item. Email us at with your order number and details, and we'll make it right by sending you the correct order as soon as possible.


I made a mistake on my order can I change it?

We'd be happy to make any necessary changes to your order if you reach out to us quickly. If the item has already been shipped, we kindly ask that you return it to us so that we can make the desired changes for you. Our goal is to make sure you are completely satisfied with your purchase.

How do I track my package?

Check the shipping confirmation email you received when your order was shipped. Find the tracking number in the email and visit the shipping carrier's website. Enter the tracking number to see the latest updates on your package's delivery status.

If you have any issues or questions about tracking your package, please contact the shipping carrier or reach out to for assistance.

When can I expect my order to arrive?

Deliveries within the US and Canada take approximately 3-5 business days, while international deliveries typically arrive within 7-14 business days.

Do you ship internationally?
Yes, we offer worldwide shipping!

What payment methods do you accept?

We accept credit cards, PayPal, and are soon offering cryptocurrency as a payment option.

The Highest Quality Possible

Our rashguards for Brazilian Jiu Jitsu are crafted with the highest quality standards, ensuring superior performance and durability.