Finding an A4 or A5 gi shouldn’t feel like a mission. But it usually does. The A2s and A3s are stacked high; the A4 might be there if you’re lucky; the A5 is often sold out before you even check. And when you do find one, it’s a gamble — jacket fits okay but the pants pull at the hips, or the shoulders bind before you’ve even tied the belt.
That’s the reality for big guys in BJJ. Here’s what actually helps.
Short answer: You need a gi cut for your frame — not just a bigger version of an A2 template. Pearl weave, reinforced stitching at the shoulder and waist panels, and pants with real hip room. The Stylso Men’s BJJ Gi is built across the full A-series, so the A4 and A5 cuts are engineered proportionally, not just scaled up. Check current availability on Amazon:
Key takeaways
- A4 fits 185–193 cm / 104–118 kg; A5 fits 190–200 cm / 118–136 kg (Stylso real sizing chart)
- Pearl weave is the better choice for bigger frames: lighter and more breathable than double weave
- Reinforced seams at the shoulder and hip panel are non-negotiable at A4/A5
- If you’re between sizes, size up — a gi that’s slightly big settles; one that starts tight fails faster
What Makes an A4 / A5 Gi Different
A bigger gi isn’t just wider. The cut has to shift proportionally — a longer jacket panel so it doesn’t ride up when you sprawl, a wider collar gap so it closes properly at the neck, broader sleeves in the upper arm, and a pant rise that actually fits a bigger build.
Most brands don’t engineer those details at A4 and A5. They scale up the A2 template and call it done. The result: a gi that technically fits on paper but binds at the shoulder when you shoot for a double-leg, or pulls tight across the hips in butterfly guard. You feel it by round two.
The fix is straightforward — look for a gi that’s designed for athletic builds across the whole A-series, not just optimized at A2 with the larger sizes as afterthoughts.
A4 or A5? Here’s the Real Difference
Both sizes fit big guys, but they’re not interchangeable. Here are the actual measured dimensions from the Stylso A-series size chart:
| Size | Height | Weight | Jacket Span (A) | Jacket Length (B) | Pant Length (D) | Pant Waist (E) |
|---|---|---|---|---|---|---|
| A4 | 185–193 cm (6’1″–6’4″) |
104–118 kg (229–260 lb) |
191 cm | 85 cm | 109 cm | 58 cm |
| A5 | 190–200 cm (6’3″–6’7″) |
118–136 kg (260–300 lb) |
197 cm | 89 cm | 114 cm | 63 cm |
Practical read: if you’re 188 cm and 110 kg, you’re squarely A4. If you’re 188 cm and 125 kg — bigger through the waist and hips — go A5. Height alone doesn’t decide it. Your weight and how you carry it matters more for the pants fit, which is where big-guy gis usually fail.
Between sizes? Size up. A gi that starts slightly loose settles in after a few washes. One that starts too tight tears faster under training stress — and you’ll know it by the first time someone grabs your collar and plants their weight.
What to Look for in a Big-Guy Gi
Weave: Pearl first. Pearl weave is lighter and more flexible than double weave, and that matters more for bigger athletes. More mass means more heat on the mat; you don’t need a thick jacket adding to it. Pearl weave holds up fine under hard training — it’s durable enough for daily rolls and competition.
Stitching: Reinforced at the stress points. The shoulder seam, hip panel on the pants, and the knee area take the most punishment. At A4/A5, the forces on those seams are higher — bigger frames generate more torque in grips and sweeps. Look for double or triple stitching at those points, not just single-run seams.
IBJJF approval. If you ever want to compete, make sure your gi is legal from day one. White, blue, or black — with collar and cuff dimensions within IBJJF spec. A gi that gets you sent off the mat before your first match is an expensive mistake.
Pre-shrunk fabric. Gis that shrink unevenly are worse for big guys — the jacket might still clear but the pants ride up an inch after the second wash. Pre-shrunk means what you buy is what you get after washing, which matters a lot when you’re right at the edge of an A4 or A5.
Our Pick: Stylso Men’s BJJ Gi
The Stylso pearl-weave gi covers the full A-series — A0 through A5 — with each cut engineered proportionally. Reinforced stitching at the seams that take the most load, IBJJF-legal colors, pre-shrunk fabric so the fit stays consistent. The Stylso Store on Amazon carries verified customer reviews you can read before buying.
Check current price and available sizes:
How to Confirm Your A4/A5 Before Ordering
This is the step most guides skip — and it’s the one that actually saves you a return shipping hassle. Here’s the 3-step check:
- Measure your height barefoot against a flat wall. A4 range: 185–193 cm. A5 range: 190–200 cm.
- Weigh yourself in normal training shape — not post-meal, not mid-cut. A4: 104–118 kg. A5: 118–136 kg.
- If height and weight give you different answers (for example, 192 cm but 120 kg), go by weight. Bigger builds need the extra waist room more than they need sleeve length — you can fold up an inch of sleeve; you can’t add waist room that isn’t there.
That third step is what big guys consistently get wrong. Ordering by height alone is how you end up with a jacket that clears but pants that gap or bind in the hips. Measure both, then decide.
If you want the full walkthrough, our how to measure for a BJJ gi guide has every dimension explained with the measurement diagram.
Breaking In Your New Gi (A4/A5 Speed Method)
New pearl-weave gis feel stiff. They loosen fast, but here’s how to accelerate it:
- First wash: cold water, air dry. No dryer, no hot cycle — heat shrinks unevenly and you don’t want to give up half an inch of waist room on wash one.
- Two or three light rolls before any hard session. Body weight, friction, and collar grabs soften the fabric faster than anything else. Go light — your training partner doesn’t want to drill collar chokes on a board-stiff gi.
- Don’t bleach. It weakens the stitching over time, and weakened seams at A4/A5 are a guarantee you’ll be re-buying inside a year.
For the full washing routine — including how to prevent shrinkage after every wash — see our how to stop a gi from shrinking guide.
Common Big-Guy Gi Mistakes
Ordering an A3 and hoping it fits. If you’re 190 cm and 115 kg, an A3 isn’t “close enough.” The jacket span is 13 cm narrower and the pants waist is 4 cm smaller than an A4. You’ll feel it in the first sprawl and spend the next session picking at a seam that’s already stressed.
Only checking the jacket. Most big guys focus on the jacket fit and forget the pants. At A4/A5 the pant waist difference is significant — 58 cm for A4, 63 cm for A5. Know your waist measurement. If your hips or thighs run bigger than your waist, the A5 pant cut is where you want to be.
Not washing before the first roll. A stiff new gi is rougher on your training partner’s skin — collar grips on untreated cotton can be abrasive. One cold wash before you step on the mat is just good gym etiquette. It also gives you a real read on the fit once the fabric relaxes slightly.
Free: Stylso BJJ Gi Size Chart (PDF)
The full A-series size chart (A0–A5) plus kids K-series — real measurements for jacket span, trouser length, waist, and height/weight ranges. Printable and shareable. Enter your email and get it instantly.
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FAQ — BJJ Gi for Big Guys
What BJJ gi size is right for a big guy?
A4 fits athletes 185–193 cm and 104–118 kg. A5 fits those 190–200 cm and 118–136 kg. If your height and weight suggest different sizes, go by weight — bigger builds need the extra waist and hip room more than sleeve length.
Is pearl weave good for big guys?
Yes. Pearl weave is lighter and more flexible than double weave, which matters more for bigger athletes who run hotter on the mat. It’s durable enough for daily training and competition — the Stylso gi uses pearl weave across its full A-series range.
What’s the difference between A4 and A5 BJJ gi?
On the Stylso A-series: the A5 has a 6 cm wider jacket span (197 vs 191 cm), a 4 cm longer jacket (89 vs 85 cm), a 5 cm longer pant (114 vs 109 cm), and a 5 cm wider pant waist (63 vs 58 cm). The A5 is built for heavier, taller builds — 118–136 kg vs the A4’s 104–118 kg range.
Can I order an A3 if I’m between A3 and A4?
If you’re genuinely between A3 and A4 — say 184 cm and 102 kg — go A4. A gi that starts slightly big settles after washing and gives you room to move. An A3 that’s already snug at the shoulders will only get tighter under training stress and wear faster.
Do Stylso gis come in A4 and A5?
Check current availability in the Stylso Store on Amazon — the A-series runs A0 through A5. Stock on the larger sizes moves fast, so check availability when you’re ready to order.
How do I stop a new A4/A5 gi from shrinking?
Wash cold, air dry every time. Avoid the dryer — heat shrinks the cotton unevenly, which shows more in larger sizes where a centimetre of waist room matters. Pre-shrunk gis like the Stylso A-series are more stable, but cold wash is still the right call every time.
By Stylso Editorial Team · About Stylso
