Ocun Advancer QC climbing shoe side view
Ocun Advancer QC climbing shoe from above with features labelled: double velcro, microfibre upper, low asymmetry
Ocun Advancer QC climbing shoe sole with features labelled: CAT rubber and 2D Fit Hard midsole
Ocun Advancer QC highlights: double velcro, low asymmetry, 2D Fit Hard midsole, 4mm CAT 1.5 micron rubber
Ocun Advancer QC Climbing Shoe
Ocun Advancer QC Climbing Shoe
Ocun Advancer QC Climbing Shoe

Ocun Advancer QC Climbing Shoe

Sale price$209.95

Comfortable shoe for intermediate climbers

Size: 4 UK
Sizing Chart: Ocun Climbing Shoes

Jump To Mitch's Experience wearing Ocun shoes

Tips for sizing your foot correctly:

Please note when measuring, it is on a bare foot without any shoes or socks.

Using a tape measure for best accuracy, measure from heel to longest toe and compare to the MM section. Round up if in between sizes

This measurement gives your high performance size

  • No upsize = high performance for sending climbs
  • Half size up = performance but more comfy
  • Full size up = All day comfort

Choose the UK sizing when ordering

UK EUR MM
2 33 210
2.5 34 215
3 35 220
3.5 36 225
4 37 230
4.5 37.5 235
5 38 240
5.5 38.5 245
6 39 250
6.5 40 255
7 41 260
7.5 41.5 265
8 42 270
8.5 42.5 275
9 43 280
9.5 44 285
10 45 290
10.5 45.5 295
11 46 300
11.5 46.5 305
12 47 310
13 48 315
14 49 320
15 50 325

Sizing feedback from Mitch:

Foot Profile:

  • Measured foot size: 253mm - rounded up to 255mm (6.5UK).
  • Cube style toes 
  • Average width.

Wearing a Bullit in 6.5UK:

  • My foot felt very snug.
  • Heel actively pushing toes into end
  • Toes are bent
  • This is a performance fit.

Wearing a Havoc in 6.5UK:

    • Foot still feels snug but less pushing in the toes as the heel in less pre-engaged.
    • Still feels somewhat of a performance fit.

Wearing a Fury in 6.5UK:

      • I struggle to get my foot in the shoe as it's a narrow model
      • Once I do, it's very tight.
      • Pain after 10mins in toes, particularly pinky toes.
      • For a narrow shoe, it's better to upsize half a size as I have a normal sized foot.

Wearing a Ozone in 6.5UK:

    • Shoes are hard to get on, less difficult than Fury. 
    • Once on are more snug than the Bullits.
    • Pain after 20mins in the pinky toes.
    • This is a true performance fit.

Yes, I wear a lot of shoes...  back to top?

What does "On Backorder" mean?

  • Out of stock with us, but it's a popular restock item, usually available from our supplier.
  • We place supplier orders weekly, so it typically takes 3 to 5 days to arrive once yours is placed.
  • We'll keep you posted if anything changes.
  • $9.95 flat rate shipping
  • Earn 209 points with our rewards program
  • 180+ 5 star reviews

Technical Specifications

Closure System

Double Velcro

Upper Compostion

Microfibre

Midsole

2D Fit Hard - Stiffer rather than sensitive

Sole/Rubber

4mm of CAT Rubber 1.5μ - Ocun's stickiest in-house rubber

Last/Fit

Low asymmetry, neutral downturn

Customer Reviews

  • 5 stars: 3 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
H
Hugo Y.

Super good quality, the free shoe size change was a lifesaver

B
Ben

Awesome fit

K
Kael W.

Got these as a pair of comfortable shoes for gym and warm up climbs and have much ditched the performance shoes I had all together. love how comfortable these fit.

Haven't done any bouldering in them but they have served me well for lead (indoor and outdoor) and board climbing.

I normally wear size 42.5 La Sportiva shoes (Miura VS, Python) which are a more performance fit. I got recommend the 9UK of these online by Happy Biner contact us phone number I texted and as a comfort fit the fit has been pretty much perfect.

These shoes obviously don't smear as good as a super soft bouldering shoe or edge as good as a super stiff shoe like the Miura, but they definitely do both very much good enough for anything I've ever climbed. I think these shoes are like 90% of the functionality of a high end performance shoe but like triple comfortable which has been a trade off I've started making even on harder climbing (they are also a lot cheaper than the high end shoes too)

Overall great comfy shoe that will get you to the top of moderate sport climbs in comfort.

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Shop Location

Find information about our Toowoomba shop here.

Happy Biner acknowledges the Giabal and Jarowair people as the Traditional Custodians of Toowoomba, the lands on where we meet, work and climb.

We pay our respects to Giabel and Jarowair Elders past, present and emerging.