How to Wash BJJ Gi | Stop Shrinking It

Wash your BJJ gi inside out in cold water on a gentle cycle with mild detergent, then hang it to dry in the shade — hot water, bleach, fabric softener, and machine drying are what ruin gis.

One wrong wash cycle can turn a perfectly fitted gi into an expensive rag. BJJ gis are cotton uniforms that shrink, fade, and weaken fast when heat or harsh chemicals touch them. The good news: caring for one is dead simple once you know which settings to ignore. Below is the exact routine from manufacturers like BRAUS, Tatami, and Hayabusa — no guesswork, no ruined gear.

What Temperature Actually Prevents Shrinkage

Cold water — between 0°C and 30°C (32°F–86°F) — is the safe zone for any BJJ gi. Tatami allows 30–40°C, but BRAUS Fight sets a hard cap: never wash or dry above 35°C. RVCA and Fight Aesthetic both recommend cold water, noting that hot water alters fit and can make a gi fail IBJJF competition compliance.

The Complete Washing Sequence for Your BJJ Gi

Follow this order every session and your gi stays regulation-sized, color-fast, and odor-free for years.

Step 1: Pre-Wash Prep (Takes 30 Seconds)

• Turn the gi jacket and pants inside out. This protects patches, screen-printed logos, and the fabric’s outer color from friction and fading.
• Tie the pants drawstring so it doesn’t snag or disappear into the waistband during the spin cycle.
• Rinse fresh stains immediately under cold water and scrub gently. For set-in stains, submerge the gi overnight in a bucket of cold water mixed with white vinegar before washing.

Step 2: First-Wash Soak for New Gis

If this is the gi’s first wash, do a cold pre-soak with 2–3 cups of white vinegar in the washer for 20–30 minutes before starting the cycle. This sets the dye and prevents color bleed later.

Step 3: Wash Settings to Use (and Which to Skip)

Wash the gi alone — never with towels or mixed colors that can bleed or cause pilling. Select the gentle cycle with cold water and a low spin speed (around 800 RPM is enough to remove water without creasing the fabric). Use a mild, organic, color-safe detergent. Add a splash of white vinegar to the rinse cycle — it neutralizes odors and keeps fibers soft without the residue fabric softener leaves behind.

Never use bleach, fabric softener, or hot water. Bleach breaks down cotton fibers, makes the material itchy, and strips color. Fabric softeners coat the weave and trap bacteria. Hot water shrinks the gi, sets stains, and can void competition compliance.

Step 4: Dry It Right — Or Replace It Early

Hang the gi immediately after the cycle ends. Leaving it in the washer for even an hour invites mildew. Dry it in a cool, shaded spot with good airflow — never in direct sunlight, which fades the fabric and weakens seams. When removing excess water by hand, squeeze gently; never wring or twist, which distorts the shape.

If you must use a dryer, set it to no heat or the lowest setting (≤30°C). High heat destroys the collar structure and shortens the gi’s life dramatically.

Heads up: You can keep your gi in peak shape longer by storing it separately from your sweaty gear bag. If you’re looking for a bag that lets your gi air out between sessions — instead of trapping moisture — check out our picks for the best BJJ bags that handle wet gear and won’t hold odors.

How to Wash a BJJ Gi: Temperature Rules By Brand

Manufacturers differ slightly on heat tolerance, but the pattern is clear: cold is always safe, hot is always a risk.

Common Mistakes That Ruin a Gi Fast

A few habits cause more gi deaths than anything else. Avoid these and your uniform lasts years instead of months.

• Hot water: Shrinks the gi, sets sweat stains, and can make it fail IBJJF size compliance.
• Bleach: Breaks down cotton fibers, makes fabric itchy, and strips color permanently.
• Fabric softener: Coats the weave with a film that traps bacteria and reduces absorbency.
• Tumble drying on high: Ruins collar stiffness, weakens seams, and shrinks unevenly.
• Washing with mixed colors: Color bleeding stains the white fabric of a gi instantly.
• Drying in direct sun: Fades patches and fabrics, and UV light damages fibers over time.

When to Wash and When to Repair

Wash your gi immediately after every training session — bacteria multiply fast in sweat-soaked cotton, and letting it sit sets stains. If you train rarely, washing once a week is the minimum, but prompt washing is better for the fabric. If the gi starts fraying at seams or the collar looks loose, it’s usually cheaper to replace than repair, especially if heat damage is the cause.

Hand Washing vs. Machine Washing

Most modern gis are machine-washable, but always check the care label. Hand washing is gentler on patches and embroidery: fill a tub with cold water, add mild detergent, submerge the gi, gently agitate by hand for a few minutes, then rinse thoroughly. Squeeze out water without twisting, and hang dry using the same shade-only rule. Machine washing with the gentle cycle and a low spin speed is faster and just as safe when done correctly.

Final Care Checklist: What Keeps Your Gi Competition-Ready

This three-step sequence is all you need to memorize. Nail these and your gi stays compliant, color-fast, and functional.

1. Wash properly: Inside out, cold water (0–30°C), gentle cycle, mild detergent, splash of white vinegar — no bleach or softener.
2. Handle stains fast: Cold water rinse and scrub immediately; vinegar soak for stubborn ones.
3. Dry in the shade: Hang in a cool, ventilated area — never in the sun or a hot dryer.