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FS Quattro

FS Quattro is a unique climbing rubber compound developed Boreal. This compound provides excellent abrasion resistance and consistent performance over a wide temperature range.


FS Quattro rubber is a specific formulation developed by Boreal. It was designed to provide consistent high performance over a wide temperature range, and to offer a long life span. This highly versatile rubber is ideal for all-round rock shoes, with a perfect blend of high friction and durability.


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Ankle Lace System

The Ankle Lace System (ALS) allows the lace to pull around the back of the ankle to provide an improved fit and eliminating foot movement inside the shoe.


The Ankle Lace System (ALS) developed by Boreal is an advanced lacing method designed to securely hold the foot in place. The lace runs through an extended webbing loop that runs around the back of the ankle. This allows the shoe to be more closely pulled around the foot, locking the heel in place and eliminating movement within the shoe.

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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.

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Ref. 11951 SPIDER
Spider
With the Spider, we have demonstrated our ability to think differently. Using their innovative one-piece IRS™ (Integrated Rand System) has resulted in a shoe with outstanding fit, precision and durability.
Product Info
  • UPPERS: Premium quality Split leather and Lorica. Padded tongue for comfort. ALS (Ankle Lacing System) maximises fit and control

  • LINING: Canvas lined

    ​WEIGHT: ​480 grs./pair (size 6 UK)
  • MIDSOLE: Half midsole with anatomic cutaway

  • SOLE: IRS (sole, rand and heel in one piece) Boreal FS-QUATTRO rubber

  • CONSTRUCTION: Slip-lasted

  • USAGE: Sport climbing, long routes training and indoor. Very comfortable and durable style

Features

  • The innovative IRS™ (Integrated Rand System) injection moulded technology is a one-piece sole, rand and heel unit which delivers an unrivalled combination of fit, support, sensitivity and durability. A premium quality split leather and lorica upper with canvas lining is combined with our unique Ankle Lacing System™ to fully enclose and hold the foot. 

  • With a medium stiffness midsole and sticky FS Quattro™ rubber you can edge and smear with confidence, no matter what the rock type. Suited to sport climbing, long routes and training, Spider is an incredibly comfortable and durable style.


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