Based on standards, the colours approved for competition are white, blue, black and navy blue.
WHAT DOES GSM MEAN?
GSM stands for ‘Grams per Square Meter’. More commonly used as a paper quality/measurement system, it is also used for garments such as t-shirts and therefore in kimonos. It comes to indicate the weight of the fabric, which gives an idea of its thickness.
Here is a list of the materials that we have selected for the production of custom Gis. The brief description can help you in the process of choosing your next Gi.
FABRIC OF THE JACKET:
Single Weave: They are the lightest kimonos having less quantity of cotton. They are good for training on hot days or in competitions where weighing is done with the kimono, and/or the competitor is just weighed. On the negative side they are usually less resistant and durable than the heavier kimonos. They are also easier to manipulate by the opponent when he wants to strangle or secure a position.
Double Weave: These kimonos are heavier than the Single Weave, thus having a greater amount of cotton. Double Weaves tend to be more expensive, but on the other hand they are more durable and resistant to breakage than the Single Weave ones. As these kimonos are heavier, they tend to have the toughest flaps and therefore the opponent will find it more difficult to manipulate to strangle or maintain a position of control.
Gold Weave: These kimono supposedly have the hardness of a Double Weave but with a weight closer to the Single Weave.
Lately other models have appeared called Pearl Weave, Summer Weave, Diamond Weave, Hybrid Weave. These usually (although not always) are Kimonos similar to Single Weave, with a certain texture that differs between manufacturers.
PEARL WEAVE is the most popular fabric on the market. Most of the Gis are 450-550 gsm, but some have been made as light as 350 gsm. It is tightly woven, thick, and sometimes it can be very rough and unpleasant in grips especially when wet. Most PEARL WEAVE chalk are pre-shrunk over 96%, but some can reach 99%. These Gis are durable, fast drying. PEARL WEAVE fabric remains rough and hard with air drying, almost like an armour. It has very little ball formation, and it does not stretch as much as soft tissues.
GOLD WEAVE used to be very popular a decade ago. It has been replaced by the PEARL WEAVE, but the old school of the Jiu-Jitsu pioneers are familiar with this fabric. If you have started training in recent years, it is likely that you do not have a GOLD WEAVE Gi because they are less seen in the market. GOLD WEAVE chalk are slowly returning to the market. The material feels soft and light due to the loose latticework. It feels sturdy but light at the same time. It is a Gi that lasts for years and years, and becomes smoother over time. A GOLD WEAVE Gi used for years can be as comfortable as wearing a pair of pyjamas. They feel heavier because they have high-strength canvas reinforcements that were added to all the seam lines. It may not be the most attractive fabric, because its appearance is like that of a kitchen towel.
CRYSTAL WEAVE is a material that has been used since 2009. They are very popular in some brands for their texture and softness. This fabric looks like a woven basket, and is very loose. It also moves a lot, and is easy to grasp. At the same time, it is comfortable and soft on the skin and it never burns! It feels thicker due to the fluffy appearance but it is actually light weight too. It contracts more than the PEARL WEAVE but can be stretched out when wet. Pulling the sleeves and sides straight after each wash keeps the size. There may be a small pilling that does not interfere with the functionality of the kimono.
PEARL WEAVE PLUS is a new and very recent fabric. Several companies have different names for the fabric, since it is very new to the market, everyone wants to claim that it is their special fabric. It feels like a softer version of PEARL WEAVE, only it has a slightly different look. Holds the washes well, and has no unexpected contraction.
HONEYCOMB WEAVE owes its name to the partial resemblance to the hexagonal cells of a honeycomb. This fabric forms ridges and hollows that gives a cell like appearance to the texture. It is a soft material, but it does not stretch too much. It breathes well, dries quickly, and feels super well ventilated and fine.
FABRIC OF PANTS:
The most common is DRILL COTTON, although a few years ago the RIPSTOP was introduced. Ripstop is a rip-stop fabric as it incorporates thicker, high-strength threads (usually nylon) in its fabric. It is commonly used to make military work clothes and equipment that requires great durability.
COTTON DRILL use to be the only material used for a Gi's pants. In recent years the RIPSTOP pants have slowly pushed the COTTON DRILL pants off, but this material is being preferred by many martial artists. It is strong, with a lot of texture and firm, so it lasts a long time. They shrink more in length than in width, but the contraction can be managed by stretching the pants after washing. The pants are very comfortable, but they can feel heavy when wet. The knees can be stretched while rolling and the appearance after training is loose and not appreciated.
RIPSTOP is a fabric that is very light weight and strong material. Most of the Ripstop pants on the market are 100% cotton, but some manufacturers offer Gi cotton/polyester combination. The Ripstop material has reinforcement threads woven in 0.5 mm at 0.8 mm intervals, giving the fabric its distinctive 3D grid pattern.
Even though Ripstop pants are very durable, the name can be deceiving. Ripstop trousers do not start at stress points when they are too small in size, and they can break at the knees over time, so chalk is usually made with reinforcement. They tend to stick to the skin when they are wet if their fit is straight so they can be a constant distraction in training. Ripstop pants keep the heat very well in competitions. They cost the manufacture the same as the COTTON DRILL.