BJJ gi, Defend, blue, 450 GSM
IBJJF450 GSMPearl weavePre-shrunk
Back in stock Week of 8 September 2026
150,00€
Defend blue BJJ gi, 450 GSM
The Defend blue BJJ gi pairs a 450 GSM pearl weave jacket with 10 oz canvas pants. Plain royal blue, cut to meet IBJJF competition rules.
Pearl weave, in practice
This is the standard weave for modern competition gis. Its slightly grainy surface, hence the name, strikes a balance between strength and weight: at equal GSM it is lighter than gold weave and dries faster.
450 GSM sits at the top end of pearl weave. The jacket takes pulling without reaching the weight of a double weave, which few people tolerate past one round.
Why canvas pants
Jacket and pants do not take the same abuse. The jacket gets gripped, pulled and twisted. The pants drag across the mat and absorb knee pressure and heel hooks. That is abrasion wear, and canvas handles it better than pearl weave.
10 oz works out at roughly 340 grams per square metre. These are dense pants that barely stretch out over time.
Blue, on the mat and in the wash
IBJJF rules allow three colours: white, royal blue and black. Royal blue clears the uniform check, as long as it is plain and the jacket and pants match. They do here.
Day to day, blue is the sensible middle ground if you own a single gi. It shows less than white, and the dye holds up to repeated washing better than black, which fades to grey after a season of drying in full sun.
Size and care
The size finder further down works from your height and your weight. Worth remembering if you plan to compete: officials measure the gap between the sleeve and the wrist, and the length of the jacket against the belt line. A gi that is too big or too shrunk gets turned away, whatever its colour.
Wash at 30 °C inside out, air dry, never in a tumble dryer. The expected shrinkage is given in the specifications below.
Specifications
- Jacket weight
- 450 GSM
- Jacket weave
- Pearl weave
- Pants weight
- 10 OZ
- Pants weave
- Twill cotton
- Reinforcements
- Double : genoux, ouvertures de jupe
- Wrist and ankle stitching
- Triple stitching and reinforced stress points
- Collar
- Mousse EVA
- Pre-shrunk
- Pre-shrunk
- Expected shrinkage
- 3 à 4%
- IBJJF approval
- IBJJF
- Available sizes
- A0, A1, A1L, A2, A2L, A3, A4, F1, F2, F3, F4
- Manufacturing
- Made in Pakistan
- Gi weight in A2
- 1.69 kg
- Care
- Read the guide
Measurements chart
The measurements below are those of the garment, taken flat and after washing. They let you compare with a gi you already own, which remains the most reliable method.
Where the measurements are taken
A
Sleeve span
Cuff to cuff, jacket laid flat, sleeves extended.
E
Jacket length
From the base of the collar to the bottom hem, down the centre of the back.
B1
Chest width
Armpit to armpit, jacket laid flat. This is the measurement that determines room across the shoulders.
T
Pant length
From the top of the waistband to the leg opening, along the outer seam.
Z
Waist width
Width of the waistband laid flat. The drawstring allows adjustment either way.
| Size | Height | Weight | Sleeve spanA | Jacket lengthE | Chest widthB1 | Pant lengthT | Waist widthZ |
|---|---|---|---|---|---|---|---|
| A0 | 150 to 163 cm | 50 to 63 kg | 150 cm | 72 cm | 55 cm | 93 cm | 50 cm |
| A1 | 160 to 173 cm | 62 to 74 kg | 160 cm | 76 cm | 58 cm | 98 cm | 51 cm |
| A1L | 173 to 181 cm | 65 to 75 kg | 167 cm | 78 cm | 59 cm | 100.5 cm | 51 cm |
| A2 | 177 to 183 cm | 77 to 85 kg | 169 cm | 80 cm | 60 cm | 103 cm | 53 cm |
| A2L | 180 to 190 cm | 82 to 92 kg | 173 cm | 82 cm | 62 cm | 105.5 cm | 55 cm |
| A3 | 184 to 195 cm | 88 to 102 kg | 175 cm | 84 cm | 64 cm | 108 cm | 58 cm |
| A4 | 195 to 205 cm | 102 to 130 kg | 183 cm | 88 cm | 67 cm | 113 cm | 61 cm |
The long cuts, A1L and A2L
They keep a width close to the standard size and lengthen the jacket, the sleeves and the pants. They are made for lean builds, at a comparable weight.
For example: at 178 cm and 72 kg, the A1L gives 2 cm more jacket and 2.5 cm more pant length than an A1, without widening the chest.
Between two sizes
Take the smaller one if you are stocky, the larger one if you are lean. If your weight exceeds the range for your height, go for the larger size: room across the shoulders matters more than length.
Still unsure? Send us your height and your weight, we reply the same day.
Garment measurements taken flat, after washing, with a tolerance of plus or minus 2 cm. The cotton is pre-shrunk, slight shrinkage may appear over the first few washes. Wash at 30 degrees, never tumble dry.
Frequently asked questions
Is this gi approved for competition?
Yes. This gi is IBJJF approved in white and black. It meets the sleeve, jacket and collar measurements checked before every match.Does it shrink in the wash?
The fabric is pre-shrunk. Slight shrinkage can appear over the first few washes; the expected figure is given in the specifications. Wash at 30 °C, never tumble dry.Which size should I take if I am between two?
Take the smaller size if you are stocky, the larger one if you are lean. The size finder on this page gives a recommendation based on your height and weight.Is a belt included?
No. Belts are sold separately, in your rank, in the Belts section.How we check these reviews. The reviews published on this page come from customers invited by email after their order. Every review is checked manually before publication. Reviews are sorted from newest to oldest by default; you can change this order. We never alter the content of a review. Read our review publication rules.
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