Aruta: Built to Alter
We’re a Singapore-designed climbing brand creating gear for the ASEAN fit—wider forefoot, secure/narrow heel—so comfort and precision show up from day one.
Athlete-tested, data-led, and community-built, Aruta focuses on real performance in humid gyms and slick stone. Fewer products, higher standards. Change what needs changing—climb the rest.
300g
Low
100% MgCO₃
Resealable
Kumo
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)
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Pick Powder if you want the fastest, cleanest re-chalks and ultra-even coverage.
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Pick Mix if you like tactile grip with fewer full re-chalks during longer burns.
300g
Low
100% MgCO₃
Resealable
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Pickup currently unavailable at Ground Up Climbing Gym
In stock! Ships within 1-2 business days.
Athlete-tested, data-led design.
Complimentary shipping & returns
Build your Bundle
Combine KUMO, RAZURE Filer, and Thunder to get reliable friction in humidity, better skin management, and cleaner sessions.
The Norm Wasn't Made For Us
So We Altered It
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@aruta.sg
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Powder and liquid chalk behave very differently in humid gyms. This guide explains when each works best and how climbers in Southeast Asia can use chalk more effectively.
The Complete Guide to Climbing Chalk in Humid Conditions
Humidity changes how chalk works. This guide explains how different chalk types perform in humid gyms, common mistakes climbers make, and how to maintain grip in Southeast Asian conditions.
About Aruta – Climbing Gear Built for Southeast Asia
Aruta is a performance-driven climbing brand built for Southeast Asia. From chalk that works in humidity to shoes designed for modern gym climbing, we create gear tailored to our conditions.