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Zenith is a unique high performance climbing rubber compound developed by Boreal. This compound provides outstanding friction and excellent hold on small edges.

Zenith rubber is a high performance rubber developed by Boreal. Zenith is designed for no-compromise performance, and features incredible friction properties combined with an ability to hold micro edges. This ultimate compound is featured on our highest performance rock shoe models. 


Integrated Rand System

The IRS system goes a step further in the manufacturing of climbing shoes. This one piece climbing sole never deforms and has a superior fit.
We can achieve different thicknesses in the rubber and the one-piece construction increases durability. 

The innovative one-piece sole and rand construction of the Integrated Rand System (IRS) allows Boreal to finely tune the rubber thickness around the shoe for the optimum balance of fit, performance and durability. By combining the rand and sole unit into one piece, there is zero chance of delaminating.

Cushioned Heel System

In order to improve comfort when stepping off the rock or walking between routes, Boreal developed the Cushioned Heel System (CHS). Using shock absorbing EVA under the heel, the foot is cushioned from rocky and hard ground.

When climbing all day, normal rock boots become tiring very quickly as the thin, sensitive nature of their construction does little to protect the foot. With the Boreal Cushioned Heel System (CHS) an EVA shock absorbing insert under the heel cushions and protects the foot with no loss of climbing performance. This means that walking between routes and stepping off the rock onto hard, uneven surfaces can be achieved in comfort.

Ref. 11368 JOKER

Joker; our bestselling model is now in its third generation, and has been upgraded to offer an improved fit and features the use of more sustainable recycled materials. The latest Joker continues to offer climbers the very best combination of comfort, performance and value available. 

Product Info
  • UPPERS Split leather and microfiber. Air Net side for increased ventilation. Double strap closure for a fast yet comfortable fit
  • LINING One piece 3D lining for greater breathability

    CONSTRUCTION Slip-Lasted
  • MIDSOLE Special anti-deformation recycled midsole
  • SOLE Sticky yet durable BOREAL Zenith Quattro2.0 outsole. 4-4.5 mm thickness depending on size. Rear part of the outsole with recycled rubber
  • CHARACTERISTICS Incredibly comfortable 3D Air Net lined shoe for long routes or long training sessions. Fit in your street shoe size to wear all day or in smaller sizes for increased precision
  • USAGE Climbing courses, training (indoor and outdoor) and long routes

    WEIGHT 546 gr. pair. Size 71⁄2 U.K.


  • Joker is built on a super-comfortable semi-asymmetric last with a slim fitting and rounded heel and low-tension rand. The upper is constructed from high quality split leather and synthetic microfibre, with recycled material content on the textile tongue and lining. The double strap closure with wide opening is fast and simple to put on and take off. The one-piece moulded heel is manufactured with recycled rubber, and incorporates a cavity filled with shock absorbing EVA for excellent foot cushioning. 

  • The medium stiffness midsole is made using recycled material content, and combined with the sticky and durable Zenith Quattro 2.0 outsole provides the ideal blend of edging support and long-lasting friction. Joker is superbly versatile. Size normally for all-day comfort on long routes and extended sessions; size down for higher performance.