Ocun Diamond S
- Regular price
- $339.95 AUD
- Sale price
- $339.95 AUD
- Regular price
-
$0.00 AUD
Diamond S Climbing Shoes – Precision Meets Performance
Crafted for ambitious climbers, designed for peak performance.
Take your climbing to the next level with the Diamond S – an innovative, high-performance climbing shoe designed to meet the demands of bouldering, sport climbing, and indoor routes. Built on the advanced Excentric 2.0 last, this shoe combines precision, comfort, and control like never before.
Whether you're scaling indoor walls in Sydney or testing your limits at the Grampians, the Diamond S is built to support you every step of the way. Its aggressive downturn and high asymmetry focus power to the toe, giving you the edge on tiny footholds and technical routes.
Key Features:
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Excentric 2.0 Last – High asymmetry and downturn provide unbeatable precision and control, perfect for edging and dynamic movements.
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3D Midsole – Concave construction supports optimal toe positioning, boosting performance on demanding climbs.
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CAT Rubber 1.5 Sole – Exceptional grip and durability for toe-hooks, smears, and everything in between.
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Transverse & Side Rubber Straps – Deliver maximum torsional stability and efficient power transfer.
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3D Toe Patch – High-friction rubber with toe-hooking deformation zones for ultimate versatility.
Comfort That Doesn’t Quit
Enjoy a snug, supportive fit thanks to the Velcro closure and tongue loop, making it easy to slip on and off between climbs. The seamless heel offers all-day comfort, especially during long gym sessions or outdoor projects.
Ethically Made. Vegan-Friendly. European Craftsmanship.
Proudly handcrafted in the Czech Republic, the Diamond S is produced with a focus on quality, innovation, and ethical responsibility. Made from 100% vegan materials, it's a conscious choice for climbers who care about performance and sustainability.
Why Choose the Diamond S?
- Advanced design for serious climbers
- High-performance grip and precision
- Comfortable for long sessions
- Durable, ethical, and 100% vegan
- Proudly made in Europe
Climb harder. Climb smarter. Choose the Diamond S.
Performance, comfort, and ethics – all in one shoe.
- Free shipping for orders above $150
- Bulky items might incur a fee. Learn more about our shipping policy.
- Returns accepted within 30 days of purchase.
- Items must be unused and in original packaging.
- No returns on safety gear unless faulty. Learn more about our return policy.
- Change-of-mind returns at your expense.
- Faulty or incorrect item? We’ll cover return shipping and offer a refund or replacement.
FAQ
How do I choose the right climbing shoe for my foot?
Choosing the right climbing shoe starts with knowing your foot shape (Egyptian, Roman, or Greek) and foot type (narrow, regular, or wide). Each model is built differently—with unique shapes, tension systems, and stiffness levels—designed to suit specific foot profiles and climbing needs. For example, wider feet may fit better in models like the Ozone HV or Bullit, while narrow feet suit the Fury or Sigma. Matching the shoe to your foot ensures better performance and comfort.
Check out the full Shoe Fitting Guide to find the best match for you.
What are the different types of rubber used in Ocun shoes?
Ocún uses three types of high-performance rubber in their climbing shoes, each designed for different needs and skill levels:
CAT rubber μ 1.1 – High friction & durable
This compound offers a good balance of grip and durability. It’s designed for beginner models, focusing on abrasion resistance while still providing reliable friction for both rock and indoor climbing.
CAT rubber μ 1.5 – Super sticky & precise
This is Ocún’s super sticky rubber, engineered for maximum grip and precision. It enhances friction between the sole and the surface, even on tiny footholds and edges. It’s used in mid-range to high-performance shoes and is great for technical climbing.
VIBRAM XS Grip – Sticky + stiff
This trusted Vibram compound blends stickiness with stiffness, making it excellent for demanding routes that require precision and stability on small edges. It’s used on shoes designed for advanced and performance-focused climbers.
What is CAT rubber?
CAT (Climbing Adhesion Technology) rubber is a high-performance climbing rubber developed by Ocún to deliver exceptional grip on rock and indoor surfaces. Its effectiveness is measured using the μ (mu) friction coefficient, which shows how well the rubber resists slipping when pressure is applied.
To measure this, Ocún uses a custom test that simulates real climbing conditions—pressing the rubber onto a surface with a known force and measuring how much it resists sliding.
CAT rubber starts at a μ value of 1.1, with higher numbers meaning more friction:
- μ ≤ 0.9: Standard rubber
- μ = 1.1 – 1.4: High friction rubber
- μ ≥ 1.5: Super sticky rubber
CAT rubber bonds to the surface through macro-scale grip (rubber sticking to rough rock texture) and micro-scale adhesion (rubber molecules interacting with the surface), giving climbers reliable traction even in demanding conditions.
What are lasts and why are there so many different ones?
A "last" is the mold that shapes a climbing shoe—it defines the fit, profile, and performance. Because no two feet (or climbs) are the same, different lasts are created to match various foot shapes, climbing styles, and comfort needs. For example, some are built for narrow feet and precise edging, while others offer more volume and all-day comfort. More lasts = better fit for more climbers
You can check the full range of lasts and how they differ here.
What is 3FS?
The patented 3 Force System (3FS) used in the Ozone, Ozone HV and Fury provides precise pressure distribution contributing to a higher torsional stiffness and resulting in perfect balance on the tiniest footholds and edges.
In short it ensures no rotation on the foot, better stability, and great support on small footholds
What’s the difference between 2D and 3D midsoles in climbing shoes?
The midsole affects how a climbing shoe balances support and sensitivity. 3D midsoles are anatomically shaped to match the human foot, offering better toe support and power transfer. They come in different stiffness levels, from 3D Fit Hard (more support, less sensitivity) to 3D Fit Middle (a balance of both).
2D midsoles are flatter and come in varying stiffness too, like 2D Toe Soft for maximum sensitivity, or 2D Fit Hard for more structured support.
Choosing the right one depends on whether you prioritise feeling the rock (sensitivity) or edging power (hardness).
That's a lot to take in... is there a simple way to compare all the shoes?
Absolutely. We’ve wrapped up all the key info—models, fits, midsoles, lasts, and more—into one clean, scroll-stopping chart. Whether you’re chasing performance or prioritising comfort, it’s the quickest way to line up your options and find the perfect match without getting buried in the details.
Check out the Complete Shoe Comparison to make choosing your next pair a breeze.