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ZERO.TT is a brand-new chalk with a Sodium Chloride component, much like V3. It contains magic grains that maximize friction, through a unique process that involves the repeated addition and dehydration of water and salts.

The result is a very stable high friction blend that allows you to excel in outdoor environments where the conditions are ever-changing. This high stability is unique to ZERO.TT, allowing it to be used in all seasons, from sweaty summers to cold winters. The performance of this on rock is exceptional, such that we could not hide our surprise.

In addition, ZERO.TT uses only food grade additives, from the base Magnesium Carbonate to all other compounds, making it the safest chalk in the world.

If your goal is to send at the crags, or summit your longest climb, let ZERO.TT be your partner.

product size

(W)160mm (H)230mm (D)40mm

(W)200mm (H)290mm (D)90mm

(W)100mm (H)195m


●SUPER BLACK is currently available only in bottles ●MADE IN JAPAN

Precautions for use

●Do not use for anything other than climbing. ●Keep out of reach of children. ●Do not consume as it is not edible. ●Avoid suction. ●Do not get this in your eyes. ●If the product gets into your eyes or if you experience discomfort such as pain or itching, stop using it immediately and wash it off with water without rubbing.If any discomfort remains, consult a doctor.

Regular price ¥2,750
Regular price Sale price ¥2,750
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- Testing in Subject Club

- In the test, we had four types of chalk with different manufacturing methods and raw material ratios tested blindly. I put only one BLACK in this and thought that I could make a relative evaluation with BLACK.
80% of the test subjects were people who usually use BLACK for rocky areas and competitions, which means that BLACK was selected as the best chalk by the test climbers.
Of course, the subject did not know that there was BLACK in the test chalk.

And the test results were very surprising.
When we evaluated the four types of test results sent from rocky areas all over the country with various parameters, we were surprised to find that 77% of the people chose BLACK as the chalk they felt had the worst friction. That's how it was. Also, of the 12 parameters, BLACK was the lowest in all 9 parameters except for humidity of 45% or less and temperature of 11-15 degrees.

There was a relatively wide variation in the good evaluations, but we selected parts that had similar evaluations even with more extreme parameters, and produced SUPER BLACK with the best raw material ratio and process.