BJJ gis use A sizes for adults (commonly A0 to A5, plus tall and wide variants), set by each brand's height and weight chart. Choose by height first, then weight. Cotton gis can shrink, so check whether the gi is preshrunk and wash cold. Pearl weave is light and popular; heavier weaves are stiffer and harder to grip. For IBJJF events, gis must be white, royal blue or black.
A gi that fits well is easier to move in and harder for opponents to grip.
Size guide
| Size | Who it usually fits |
|---|---|
| A0 to A1 | Smaller adults |
| A2 | Medium height |
| A3 | Taller adults |
| A4 to A5 | Tall and large adults |
Every brand publishes its own chart, and some offer short, long and wide cuts.
Weaves
| Weave | Feel |
|---|---|
| Pearl | Light, durable, popular |
| Single | Light |
| Double | Heavy, tough to grip |
| Gold | Mid-weight |
Care
Wash cold, hang dry, and wash after every session. Many gis are preshrunk; check the label.
Competition rules
For IBJJF events the gi must be white, royal blue or black and pass sleeve and pant length checks.
Related: browse BJJ and grappling.
Common questions
What size BJJ gi should I get?
Use the brand's chart, by height first and weight second. Sizes vary between brands.
Do BJJ gis shrink?
Cotton gis can shrink, especially in hot water and the dryer. Wash cold and hang dry.
What gi colors are allowed in IBJJF tournaments?
White, royal blue and black, with the jacket and pants in the same color.