Product highlights

Weight

300g

Dust Profile

Low

Composition

100% MgCO₃

Packaging

Resealable

Aruta

Kumo

$23.00

KUMO is Aruta’s chalk line—built for ASEAN humidity and modern movement. Whether you prefer silky, ultra-fine coverage or the tactile control of breakable chunks plus powder, KUMO keeps friction high and dust low so you can focus on flow, not moisture. Consistent from bag to bag, additive-free, and packaged to refill.

How to choose (quick guide)

Pick Powder if you want the fastest, cleanest re-chalks and ultra-even coverage.
Pick Mix if you like tactile grip with fewer full re-chalks during longer burns.

Type: Powder

Powder
Mix

Product variants

Product highlights

Weight

300g

Dust Profile

Low

Composition

100% MgCO₃

Packaging

Resealable

In stock, ready to ship

Pickup currently unavailable at Ground Up Climbing Gym

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Pairs well with

In stock! Ships within 1-2 business days.

Athlete-tested, data-led design.

Complimentary shipping & returns

Kumo

Powder

$23.00

Tech Specs

What’s inside

100% magnesium carbonate (MgCO₃)

Best for

Bouldering and sport sessions where grip needs shift from warm-up to redpoint—indoors or out.

How to use

Dust lightly and clap once (Powdered). For Mixed, rub a small chunk for base coverage, then top up with the fine powder. Break chunks by hand to your preferred size. Store airtight.

Care notes

Brush holds regularly; wash hands post-session; moisturise skin after climbing.

A New Standard of Grip

Unveiling friction you’ve been missing. KUMO lays down a clean, even layer that turns humid gyms and slick stone into familiar ground. Every move feels deliberate; every touch, precise. Not just chalk—clarity in contact.

Crafted with meticulous precision, KUMO isn’t another bag of powder.

It’s an additive-free formulation tuned for our climate—consistent from first dip to last. Smooth spread, fast dry, low dust. Premium performance you can feel, without the mess.

We build what actually changes your climb

Uninterrupted Sessions

From long circuits to redpoint burns, climb without constant re-chalking. KUMO manages moisture in ASEAN humidity, keeps dust low for cleaner air, and pairs perfectly with Thunder liquid chalk when you want a thin, long-lasting base layer.

FAQs

Please read our FAQs page to find out more.

Is KUMO safe for sensitive skin?

Yes. It’s additive-free—no scents, fillers, or extra drying agents.

Indoor or outdoor?

Both. It’s tuned for humid gyms and works reliably on slick stone.

Will it create big dust clouds?

KUMO is milled for low dust / high cling. Use a light tap to activate.

How big are the chunks in Mixed?

Sizes vary intentionally—break by hand to your liking.

Is the bag recyclable?

Check local guidelines. We recommend refilling to reduce waste.