Icebug Sisu RB9X BOA Fit System, pure action - Carreraspormontana.com

The Icebug proposal, powered by the Boa Fit System, arrives to delight runners in short races and vertical kilometers, especially on greasy and slippery ground. Arrival of orientation, the brand offers more than interesting options for those of us who run in the mountains.

The Icebug philosophy: speed and environment

The Nordic countries are full of relatively small companies offering specialized products; They are characterized by design, quality and, above all, research. The Swedish house ICEBUG is no exception and proposes in its product to be the first climate-conscious shoe.

Its commitment to the UN climate commission is total, all production processes are aimed at reducing gas emissions, complying with the parameters established by the UN. Not only are we dealing with a green company, but the materials from which the shoes are made have a greatly reduced impact on the environment.

In addition to this, Icebug was the first shoe designed for running on snow with solutions that offered resistance to weather conditions and grip (also even on icy snow), thanks to solutions developed with companies like Michelin. Including soles that allow the client to orient himself according to the season, making it possible to combine different soles in the same shoe model.

Icebug is the reference brand in the world of orienteering, widely used in OCRs and swimruns. The model that we are going to analyze is the "racing" version, designed for fast trail or off-road races, which in our market will have a great place in the world of vertical kilometers.

After the first visual impact, there is no doubt about the intended use: the shoe is very sharp and committed to its mission, thin and minimalist, very clean. Every detail is perfectly integrated into the upper part, almost hidden. If it weren't for the Boa Fit System integrated into the upper, it would look like a sock, and that's how it feels to put it on.

A minimalist shoe

The ICEBUG SISU RB9X BOA FIT SYSTEM is radically low, with little protection, the sole composed of large and prominent studs, is designed to evacuate as much mud and material as possible on the Exits through especially humid ground. Very aggressive.

The first detail of the sole of the shoe; the front is connected to the rear by a small rubber strip, leaving the area under the arch practically empty. Undoubtedly a solution that gives the shoe great torsion power, and a good ability to avoid accumulating waste and weight in it.

The tacos are not numerous, but of a good size. They are of different design and are inserted into the sole with a precise pattern and interspersed with large gaps. Designed to provide the maximum possible grip both on the climbs and on the most slippery descents.

In parts

Sneaker collar

The shell that covers the heel is relatively low, the Achilles tendon free as well as the malleolus; It is very hard, I would say that it is the only rigid part of the shoe. I think there is a logic to all of this, in fact it gives stability to the entire upper that is soft in both flex and torsion. It works as a "skeleton" and reinforces the whole set.

Tongue

In the part of the upper that covers the instep (to understand where the tongue is traditionally), a membrane very similar to neoprene has been sewn. This is the closest thing she has to her, it works perfectly and lightens the whole.

The lacing system

The classic BOA FIT SYSTEM wheel is strategically placed in the front-upper part of the shoe, without causing the slightest discomfort during the running action.

The BOA FIT SYSTEM lacing system is carefully designed; the TX4 lacing is connected by ultra-flat guides that descend very low on the outside of the shoe and, at the top, to a membrane with 4 (black) straps made of rubbery material that covers the arch of the foot, a system that has already worked in other models that incorporate BOA with the best guarantees. Just at a glance you can guess the functionality, it is enveloping and transmits a lot of security. The BOA FIT SYSTEM wheel is placed in a precise position, on top of the instep but a few degrees off the talus.

Insole

Internally, the insole is very thin, no more than 2 mm, to optimize the sensation of the foot on the ground. It is not necessary to put a more reinforced insole, although it is worth noting that the use of carbon insoles will substantially improve the feeling of protection and reaction.

Speaking of numbers

Perfect fit

Putting the shoe on is relatively easy, the BOA system offers enough cable length, allowing you to widen the upper cavity; A few turns of the L6 dial and we have the first pleasant surprise; the foot is well wrapped in a perfectly homogeneous way in the part that goes from the phalanges to the beginning of the heel. The foot is perfectly adjusted to the entire shoe, wrapping it in a very similar way to a glove. The BOA dial allows millimeter adjustment, adapting to the characteristics of each user.

A result that can never be achieved with a classic lace, since the L6 dial together with the lacing system applied in this model offers the user a simply perfect fit. It allows to adjust the pressure of the lacing to our foot and not the other way around.

An extremely "racing" shoe

There is no doubt that we are running with a competition shoe, low drop, minimal protection. As for cushioning, it is minimal, but not the reactivation of it, a very high reactivity, but it is not suitable for all users and even less on all terrains and distances.

You have to maintain a high cadence, with the greatest number of supports and an excellent technique to get the most out of this great competitor.

And the grip on stone and oily terrain is where this Icebug moves in its terrain, when you use it on difficult terrain you realize that you have under your feet a product elaborated to the smallest detail. The grip on wet stone is brutal, giving the feeling of total security. In muddy and slippery terrain it behaves even better if possible, offering everything you need to overcome these sections.

Conclusions

Racing shoe to be used in very specific training or vertical kilometer competition or short race. For users with refined running technique looking for high performance and specificity in competition. A perfect grip on wet stone and very oily ground. The "fit" is simply perfect, adjusting to the foot of each user efficiently and quickly. Sustainable, created from recycled PET plastics, with standards approved by the EU that protect the planet.

More information: https://www.boafit.com/es-es/products/icebug-sisu/1903.html