Why Your Gi Choice Actually Matters
The gi (also called a kimono) is your primary training tool in gi BJJ and traditional Jujutsu. A poor fit creates problems — too loose and it bunches up during rolls, too tight and it restricts movement and tears seams. An overly thin weave won't survive daily training. Getting this right from the start saves money and frustration.
Understanding Gi Weaves
The weave refers to how the fabric is woven, which affects weight, durability, and feel:
- Single weave — Lightweight and affordable. Good for beginners or hot climates, but less durable under heavy training.
- Double weave — Very durable and heavy. More difficult for opponents to grip, but can feel stiff and hot.
- Gold/Pearl weave — The modern sweet spot. Combines the lightness of single weave with improved durability. Most popular choice across all levels.
- Ripstop — Ultra-lightweight, quick-drying fabric. Great for competition gi pants or hot weather training.
For most beginners, a pearl weave gi offers the best combination of comfort, durability, and weight.
Getting the Right Size
Gi sizing is not universal — it varies between brands. Most use an alphanumeric system (A0, A1, A2, A3, A4 for adults; M0, M1, M2 for children). Key fit guidelines:
- Jacket sleeves should end no more than 5cm from the wrist bone.
- Jacket should cover your belt knot when tied.
- Pants should end roughly 5cm above the ankle.
- There should be enough room in the shoulders and chest to move freely without excess bunching.
Important: Most gis shrink when washed in warm/hot water. Check the manufacturer's pre-shrink notes. Many recommend washing in cold water and air drying to preserve fit.
What to Look for in Construction Quality
Inspect these areas when evaluating a gi:
- Collar — Should be thick and firm (rubber or layered cotton). Thin collars collapse during chokes and wear out quickly.
- Stitching — Double or triple stitching at stress points (armpits, collar seams, lapel attachment) indicates quality construction.
- Reinforcement patches — Quality gis have reinforcement at the knees, inside the jacket hem, and around the collar attachment.
- Pearl weave density (GSM) — Fabric weight is measured in grams per square meter. For a gi jacket, 450–550 GSM is a durable everyday weight.
Competition Legal Requirements
If you plan to compete under IBJJF rules, your gi must meet specific requirements:
- Color must be white, royal blue, or black (solid, no mix-and-match top/bottom colors).
- Patches and embroidery must not cover excessive surface area.
- Collar and sleeve lengths must meet minimum measurements.
Many brands sell "competition approved" or "IBJJF legal" gis — this is a convenient marker if competing is in your plans.
Price Ranges and What to Expect
| Budget Range | What You Get | Best For |
|---|---|---|
| Under $60 | Basic single or pearl weave; minimal features; adequate for casual training | Beginners testing the sport |
| $60–$120 | Good quality pearl weave; solid construction; decent range of sizes | Committed beginners and intermediates |
| $120–$200+ | Premium weaves; superior stitching; lightweight competition cuts; prestige brands | Regular competitors and serious practitioners |
Caring for Your Gi
Even an expensive gi deteriorates quickly with poor care:
- Wash after every session — bacteria multiply rapidly in sweated fabric.
- Cold water wash, air dry when possible to preserve size and fabric integrity.
- Never leave a damp gi in your bag — mildew sets in within hours.
- Hang to dry completely before storing.
A well-cared-for quality gi can last several years of regular training. It's worth investing a little more upfront.