What Size BJJ Gi Should You Get? Sizing Chart by Height and Weight (2026)

01How BJJ gi sizing works

Gi sizes use an A-number scale that starts around A0 for smaller frames and climbs toward A4, A5 or A6 for taller, heavier builds. Most brands split height into bands and attach a weight range to each one, since two people at the same height can carry very different weight. A fighter who falls between two grades, or who carries more weight in the torso than the legs, is usually told to size up rather than down. Several brands also sell Long, Husky and Fitted cuts alongside the standard A-numbers, built for a taller torso, a broader frame, or a leaner build at the same height.

02Hayabusa sizing

Hayabusa sells its Pearl Weave Ultra-Light Jiu Jitsu Gi in sizes A0 through A5, in a 350 GSM pearl weave jacket with 8 oz ripstop pants, priced at $129 on hayabusafight.com (checked November 10, 2026). The official product page does not publish a full height and weight table in text form, it points buyers to a separate size guide and gives two fit references instead: a 5’10”, 185 lb wearer takes an A2 jacket, and a 5’7″, 170 lb wearer takes an A1. Hayabusa’s general gi sizing guide advises measuring chest, waist, arm length and leg length rather than relying on height alone, and sizing up whenever the gi restricts movement during a roll.

0393 Brand sizing

93 Brand publishes the most detailed official chart of the four, covering its Standard Issue 2.0 and premium gis. The Standard Issue 2.0 jacket is 375 GSM Pro Pearl Weave, priced at $110.99 on 93brand.com (checked November 10, 2026), with 14 sizes currently in stock once Long, Husky and Fitted cuts are counted.

93 Brand also lists Long sizes (A1L, A1XL, A2L, A3L) for a taller torso at a given weight, Husky sizes (A0H, A1H, A2H, A3H) for a broader frame, and a Fitted A1F for a leaner build. The full breakdown for every variant sits on 93brand.com’s own size guide page, alongside a separate chart for the older first-generation Standard Issue gi, which runs smaller and calls for sizing up from the 2.0 chart above.

04Venum sizing

Venum’s men’s gi line runs from A0 to A4, with half sizes A1.5 and A2.5 inserted for a fighter who falls between two standard grades, according to the brand’s published measurements. The chart ties each size to a height band rather than a weight range, then gives sleeve and leg length in inches for a precise check once a gi arrives.

Venum’s guidance for weight is simpler than its height bands: a fighter at the heavier end of a height range is told to size up rather than stay on the listed grade. Check the current price for the Elite and Contender lines directly on venum.com, since the brand’s US storefront did not return a stable listing at the time of writing.

See the current price on venum.com.

05Scramble sizing

Scramble sells gis in sizes A0 through A4, with A2L and A3L long variants for a taller torso at the same weight. The Base-K gi, a 450 GSM cotton model with midweight ripstop pants, is priced at $140 on scramblestuff.com (checked November 10, 2026). Scramble builds every gi in the range on the same cut and pattern, so a size picked for one model should carry over to another.

06Final sizing tips

A fighter between two sizes on any of these charts generally does better sizing up rather than down, since a gi that is too tight restricts the grip exchanges that define BJJ. A new gi also shrinks somewhat after its first few washes, even on models marketed as pre-shrunk, so a gi that fits loosely on day one often settles into a better fit within a month of regular washing in cold water and air drying. Checking sleeve and leg length against a federation’s competition rules matters too, since the IBJJF and similar bodies set maximum sleeve and pant gaps that a gi sized for comfort alone can miss.

The full MMA gear section covers gloves, shin guards and the rest of a fighter’s kit beyond the gi.

07Frequently asked questions