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IBJJF Uniform Rules 2026: How to Pass Inspection Every Time

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Key Takeaways:

  • Fabric Weight Limits: Gi jackets must weigh between 380 GSM and 650 GSM to prevent unfair gripping advantages.

  • No-Gi Rank Colors: Rashguards require at least 10% of the fabric to match your belt rank color (White, Blue, Purple, Brown, or Black).

  • Patch Placement: Strict bans remain on patches placed near the lapel or potentially obstructing the collar grip.

IBJJF Uniform Guidelines are the strict set of fabric, fit, and color standards mandated by the International Brazilian Jiu-Jitsu Federation for all competitors. These rules are enforced to ensure athlete safety, maintain fair play regarding grip mechanics, and guarantee clear rank identification for referees and spectators.

The Competition Standard: Gi Requirements for 2025 Entering the bullpen without checking your gear is the fastest way to get disqualified before the match starts. The 2025 rule set emphasizes material density and precise fit.

1. Color and Condition

The IBJJF allows only three standard colors for the Gi: White, Royal Blue, or Black.

  • Uniformity: The Gi jacket and pants must be the exact same color. You cannot mix a white jacket with blue pants.

  • Collar: The collar must match the color of the jacket.

  • Hygiene: Gis must be dry and free of unpleasant odors or tears.

2. Fabric and Weave (GSM)

The most critical technical update involves the GSM (Grams per Square Meter) of the fabric.

  • Minimum: 380 GSM

  • Maximum: 650 GSM

  • Material: The fabric must be cotton or a cotton-like fabric. Synthetics that are too slippery or too hard to grip are prohibited.

Pro Tip: Most Pearl Weave Gis fall perfectly into this range (usually 450-550 GSM), offering a balance of durability and lightness. Check out our latest reviews on the Gracie Master Gear and Promotions YouTube channel to see which weaves hold up best.

3. Measurements and Fit

Referees use a measuring tool (the "Gi Checker") to verify these dimensions. | Measurement Zone | Requirement | Reason | | :--- | :--- | :--- | | Sleeve Length | Max 5cm from wrist bone | Ensures opponent can secure spider/sleeve grips. | | Sleeve Opening | Min 7cm diameter | Allows hand insertion for grips. | | Jacket Length | Must reach the thigh | Prevents the jacket from untucking instantly. | | Pants Length | Max 5cm from ankle bone | Ensures fair leg entanglements. |

No-Gi Protocol: Rashguards and Shorts As No-Gi popularity surges, the uniform regulations have become more specific to prevent "greasing" or visual confusion.

The Rashguard "10% Rule"

Your rashguard must be skin-tight and long enough to cover the torso to the waistband of the shorts. The color scheme is strict:

  • Base Color: Must be Black or White.

  • Rank Requirement: At least 10% of the rashguard must be the color of your rank (belt).

  • Solid Options: You are also permitted to wear a rashguard that is 100% the color of your rank.

Shorts and Spats

  • Board Shorts: Must be Black, White, or Black/White, and may contain up to 50% of your rank color.

  • Prohibited Items: Pockets, zippers, buttons, snaps, or metal pieces are strictly banned to prevent cuts and finger injuries.

  • Spats (Compression Pants): Men are permitted to wear spats under their shorts. Women may wear spats or compression pants as their primary lower layer.


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Mental Preparation Worrying about a uniform check adds unnecessary stress on game day. As discussed on our podcast, "Beyond the Table," minimizing external variables is key to a winning mindset. Ensure your gear is compliant weeks before the tournament so you can focus entirely on the mats.

Looking for a new competition-ready rotation? Visit us at GraciePro.com







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