How to Choose the Right BJJ Gi: Complete Sizing and Buying Guide
Everything you need to know about BJJ gi sizing, fabric types, weave options, and how to find the perfect fit for your body type and training needs.
Choosing the right gi is essential for comfort and performance
Your BJJ gi is more than just a uniform—it's a training tool that affects your comfort, mobility, and even your technique development. Whether you're buying your first gi or upgrading to something competition-ready, this guide will help you make the right choice.

Understanding Gi Sizing
BJJ gi sizes use an alphanumeric system (A0-A6) that differs from standard clothing sizes:
| Size | Height | Weight | |------|--------|--------| | A0 | 5'0"-5'4" | 120-145 lbs | | A1 | 5'4"-5'7" | 145-170 lbs | | A2 | 5'7"-5'10" | 170-190 lbs | | A3 | 5'10"-6'1" | 190-220 lbs | | A4 | 6'1"-6'3" | 220-250 lbs | | A5 | 6'3"-6'5" | 250-280 lbs | | A6 | 6'5"+ | 280+ lbs |
Many brands also offer:
- L (Long) versions: A1L, A2L, etc. for taller, leaner builds
- H (Husky) versions: A2H, A3H for stockier builds
- F (Female) cuts: Designed for women's proportions

Gi Weave Types
The weave affects durability, weight, and feel:
Single Weave
- Pros: Lightweight, cool, affordable
- Cons: Less durable, easier to grip
- Best for: Hot climates, beginners on a budget
Double Weave
- Pros: Very durable, harder to grip
- Cons: Heavy, hot, takes forever to dry
- Best for: Competitors concerned about grips, cold climates
Pearl Weave
- Pros: Balance of durability and weight, soft feel
- Cons: Slightly more expensive
- Best for: Most practitioners (the current standard)
Gold Weave
- Pros: Lightweight yet durable
- Cons: Can be expensive
- Best for: Competition, all-around use
Ripstop
- Used primarily for pants, very durable and lightweight
What to Look for in a Gi
Competition Legal Requirements (IBJJF)
If you plan to compete, ensure your gi meets these requirements:
- Jacket length must reach the thighs
- Sleeves must be no more than 5cm above the wrist
- Pants must be no more than 5cm above the ankle
- Colors: White, blue, or black only
- No excessive logos or patches
Fit Considerations
Jacket:
- Should feel snug but allow full range of motion
- Lapels shouldn't be too loose (easy grips)
- Sleeves shouldn't extend past wrists
Pants:
- Should stay up without excessive tightening
- Allow full range for guard work
- Not so long you step on them
Breaking In Your Gi
New gis are typically stiff. Here's how to break them in:
- First Wash: Cold water, gentle cycle
- Expect Shrinkage: Most gis shrink 1-2 sizes on first wash
- Line Dry: Heat from dryers causes additional shrinkage
- Train In It: Rolling is the best way to soften a gi
Brand Comparisons
Different brands have different fits. Here's a general guide:
| Brand | Fit Style | Known For | |-------|-----------|-----------| | Fuji | True to size | Value, durability | | Tatami | Slim fit | Modern styling | | Shoyoroll | Athletic fit | Limited releases, quality | | Hayabusa | Generous fit | Quality construction | | Kingz | Athletic fit | Competition-ready | | 93 Brand | Slim fit | Budget-friendly |
Price Ranges and Expectations
Budget ($50-80):
- Good for beginners
- May wear faster
- Basic designs
Mid-Range ($80-150):
- Best value for most practitioners
- Good durability and comfort
- Variety of styles
Premium ($150-250+):
- Top-tier construction
- Advanced materials
- Competition-focused features
How Many Gis Do You Need?
- Training 2x/week: 1-2 gis
- Training 3-4x/week: 2-3 gis
- Training daily: 3-4 gis minimum
Having multiple gis allows proper drying between sessions and extends the life of each gi.
Find Your Perfect Size
Use our Gi Size Calculator to get personalized recommendations based on your height, weight, and body type. We'll suggest the right size across major brands.
Final Tips
- Buy slightly larger if unsure - Gis shrink, they don't stretch
- Read reviews - Real user feedback about sizing is invaluable
- Check return policies - Make sure you can exchange if needed
- Start with one - Try a brand before buying multiple
- White first - Most versatile for training and competition
Your gi should feel like a second skin—comfortable, unrestrictive, and durable enough to handle years of training. Take the time to find the right one, and it will serve you well on your BJJ journey.
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