Facts

Construction: Slip lasted
Closure: Velcro
Fit: Performance fit
Downturn: Aggressive
Environment: Indoor, Outdoor
Material: Synthetic, Vibram sole
Lining: Unlined
Last Shape: Asymmetric
Stiffness: Soft
Thickness: 3.5mm
Top: Low
Use: Bouldering, Sport, Face
Features: Lightweight
Price: $190
Weight: Men: 7.4oz
Brand: Scarpa
Colorways: Yellow
Size
Small True to size Large
See more facts

Expert Reviews

Experts are climbers, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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93 / 100 based on 16 expert reviews

  • 100 / 100 | EpicTV | Level 4 expert

    This is a really high-performance shoe that excels in the gym or on technical overhanging climbs.

  • 92 / 100 | Plastic Fantastic Climbing | Level 2 expert

    All in all happy with it.

  • 90 / 100 | Gear Institute | Level 4 expert

    These shoes are light and as responsive as the tires on an Italian sports car.

  • 100 / 100 | Splitter Choss | | Level 3 expert

    If you enjoy steep terrain and soft shoes, these should be at the top of your list.

  • 94 / 100 | squamishclimbingMagazine | | Level 3 expert

    Overall, the Scarpa Booster S is an impressive shoe that excels when climbing both overhanging and vertical terrain.

  • 83 / 100 | Evening Sends | | Level 3 expert

    [T]he Scarpa Booster S has stolen the top place in my climbing pack for steep sport routes and boulder problems.

Become an expert

-The Scarpa Booster is a supportive rock shoe engineered for climbers who wish to send projects with a combination of support, precision, and power. It is built with technologies that make it an aggressive performer without cranking up its weight.

-Wearers who would choose to don this Scarpa offering are promised enhanced underfoot support, thanks to the Tri-Tension system. This piece of brand-exclusive tech also provides heel-to-toe power transfer.

Downturn. The Booster S is a rock shoe with an aggressive downturn. Its beak-like toe zone is ideal for gaining purchase on tricky holds, such as nubbins, tiny edges, and micro-pockets.

Applications. This Scarpa rock climbing shoe is a tool intended for bouldering and sport climbing, whether indoors or outdoors. Its construction and set of components capacitate users to scale vertical faces safely and efficiently.

Scarpa’s Booster S is a low-top climb-centric shoe for men. It relies on its Velcro closure in providing wearers with a secure and personalized lockdown. Engineered with an unlined synthetic upper, this shoe offers a snug fit with a minimum amount of stretching. A curved interior can be expected from its asymmetric shape.

Midsole. In the Booster S, climbers can expect to mount on edges and pockets with less energy spent thanks to the shoe’s Flexan midsole. This supportive layer is 1 millimeter thick.

Outsole. This aggressive rock shoe by Scarpa comes with the Vibram XS Grip 2 outsole for surface traction. It has an overall thickness of 3.5 millimeters. Its stickiness works on different types of terrain, especially on overhangs.

Synthetic leather, also known as microsuede, is the material prevalent in the Scarpa Booster S’ below-the-ankle upper. Its interior comes without a liner. It has a tongue made of mesh for extra breathability. A sturdy rand is built around its lower perimeter, giving users increased protection against abrasive hazards and additional climbing bite on certain surfaces. A textured patch with the Scarpa logo embossed on it reinforces the shoe’s toe box. This forefoot reinforcement provides added sticking power in toe-hooking situations. Built into the upper’s heel are two pull tabs for on-and-off assistance.

The Booster S’ closure system consists of two adjustable straps set through heavy-duty ladder loops. Both of these straps are engineered with hook-and-loop fasteners.

The Booster S is one of Scarpa’s selection of high-quality rock shoes. That said, so is the Instinct VSR. Choosing between the two could be either tricky or somewhat easy, depending on your preference and what you know about both. A number of aspects set the two climbing shoes apart. These differences will be covered in the list that follows.

Target audience. The featured shoe is built mainly for male climbers. The Scarpa Instinct VSR, on the other hand, is engineered as a unisex climbing shoe.

Downturn. The Booster S belongs to the brand’s aggressively downturned kicks, while its competitor is part of Scarpa’s roster of moderately downturned climbing shoes.

Asking price. This area is where the Instinct VSR shines. Indeed, it is cheaper than the Booster S by about $15. If you are into less expensive kicks, consider looking into some of the budget-friendliest climbing shoes featured on this site.

Upper. Both Scarpa offerings in this comparison sport unlined synthetic uppers. That said, the Booster S has two Velcro straps as opposed to the Instinct VSR’s one. The competition, on the other hand, has an extra pull tab at the tongue which the featured climbing shoe lacks.

Weight. If you are a kind of climber who values lightness strongly, you will likely side with the Scarpa Booster S. Yes, this aggressively downturned shoe is lighter than the Instinct VSR by roughly 20 grams.

Outsole. Although both products in this head-to-head use the same 3.5-mm thick Vibram outsole (XS Grip 2), only the Booster S’ heel zone comes with a ridged design.

Comparison