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Scarpa Booster S

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The Scarpa Booster S is an incredibly sensitive performance climbing shoe, specifically developed for high end sport climbing and bouldering. 

Ideally suited to those who want maximum feel on the rock, a one-third length Vibram sole creates flexibility that allows more natural movement through overhanging, thin routes. By concentrating the strength of the foot through an asymmetrical support ribbon, the Tri-tension rand enhances powerful movements on dynamic problems by driving energy to the forefoot. 

Whilst the materials and construction are similar to those used in the other Scarpa performance rock climbing shoe range, the Booster S fulfils its sensitivity remit partially through a lightening up of the materials used. The upper fabrics and sole unit are considerably thinner than those used in the likes of the Instinct VS, thus it will be more susceptible to wear in a shorter time frame, particularly if it is used excessively on climbing walls or by those with less precise footwork. 

All of this adds up to create an extremely sensitive, flexible shoe ideal for moving fast over technical, steep and overhanging rock.


  • Lining: Unlined
  • Midsole: 1/3
  • Outsole: Vibram XS Edge
  • Upper: MIcrofiber
  • Gender: Unisex
  • Last: FZ
  • Closure: Strap
  • Weight: 396g (EU 40)

Help with sizing your rock shoes

If you require some assistance with sizing this shoe to your particular needs click here: Rock Shoe Sizing Guide

    Customer Reviews

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    stephen f.
    United Kingdom

    Snug fitting steep stuff shoe.

    Snug fitting steep stuff shoe. Good for dancin in not bad for heel hooks either

    Jonny V.
    United Kingdom

    Incredible shoe if it fits

    I've always loved the fit of Scarpa - I've got wide feet, Morton's toe and a large heel, meaning brands such as La Sportiva and Five Ten are generally ill-fitting. Since Evolv stopped making the Shaman 1's I've been searching for a technical, but comfortable shoe that catered for those with "feet with girth". These shoes, if you can get the right size, are almost perfect The shoe itself is soft and supple, yet the toe box and heel reaasurangly firm and supportive. If the Scarpa Instinct S and Evolv Shaman ever hooked up after a drunken night out, this would be their love child. Tyoically with new climbing shoes I'm jabbing my toes into the climbing wall, missing the sweet spot of the hold while I'm breaking them in indoors. With these, the feel you get through the thin rubber is incredible. As soon as you put them on it's like you've already climbed 3-4 sessions in them, as long as they fit right. Which brings me to why they're *almost* perfect: I had to order three different sizes to finally get to the perfect size. As the upper is incredibly thin together got to be wary of buying too small in case your toe-knuckles rip through the top. Buy too big and you'll end up scraping away what little rubber is already there before getting past your warm up. However, get it just right (and thankfully Scarpa do half-euro sizes) and this shoe will give you the confidence and feel to chase your next big project.

    Jonny V. verified customer review of Scarpa Booster S
    Ruth A.
    United Kingdom

    Shoes do what they should

    fine - Shoes do what they should Rock and Run were great.

    Wojciech H.

    Really great shoes for edging.

    Really great shoes for edging.

    NICK T.

    Fast service as usual and

    Fast service as usual and good prices


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