Updates to Dynafit Speed MTN GTX

  • The Dynafit Speed MTN GTX is a running shoe that’s designed for those who have neutral pronation. It’s also meant for endurance projects on technical trails. The upper unit has been optimized to withstand abrasion and contact with the outdoor debris. Protective bumpers on the heel and forefoot make sure to keep the foot safe from potentially harmful elements. The Gore-Tex® membrane keeps water away from the interior chamber.
  • A traditional midsole isn’t fashioned in this product. Only an Ortholite footbed is present. This construction heightens proprioception and surface control, especially when it comes to unpredictable and tricky paths. An aggressive external pad provides traction and claw-like hold.

Size and fit

The Dynafit Speed MTN GTX was designed using the standard measurements, so it aims to be true to size. When it comes to width, it also has the goal of having an agreeable coverage. The form-fitting heel, the curved midfoot, and the slanting forefoot construction mimic the natural curvature of the human foot.


The outsole makes use of the Speed MTN configuration, which is made up of an abrasion-resistant rubber. This layer has the goal of protecting the relatively thin platform of the Dynafit Speed MTN GTX from the debilitating nature of the trails. It also provides traction.

Aggressive gripping lugs are patterned across the surface. These rubber nodes clamp onto the ground like claws, thus ensuring steadiness and sure traversals.


A traditional midsole isn’t present in this running shoe. Instead, it encourages proprioception and natural foot flexibility. The platform is made up of an Ortholite footbed, which delivers mild cushioning and antimicrobial protection. The Asics Gel Nimbus 21 is a good example of a road-running counterpart for the Dynafit Speed MTN GTX; both are designed for neutral pronators and are ideal for daily runs.


The Dynafit Speed MTN GTX has different types of fabrics to provide optimum support and protection. The forefoot section makes use of the Ballistic Fabric. It’s a robust element that is mixed with Aramid fibers for a reinforced finish.

Tech Leather is placed on the sides. It’s abrasion resistant, and it has a premium look to it, potentially heightening the aesthetics of the façade.

Gore-Tex® is a waterproof membrane. Its job is to prevent the infiltration of water into the foot-chamber, thereby improving the runner’s confidence and in-shoe experience when tackling wet paths.

The Heel Preloader is a thin overlay that goes around the back of the shoe. Its purpose is to hold the foot in place and prevent it from quavering or exiting the foot-chamber unexpectedly.

A one-pull lacing system is utilized in this product. It makes it easier for runners to tighten or loosen the fit. It’s secured by a press-to-lock mechanism that’s inconspicuous in shape.

A stretchy mesh blankets the instep section. Its name is the Invisible Lacing System, and it aims to hide the shoelaces from view.

The front and rear sections make use of Ballistic Bumpers. These rubber barriers serve as shields against abrasion.

A pull tab is placed on the back part of the collar. It assists the runner when it comes to wearing and removing the Speed MTN GTX.

Facts / Specs

Terrain: Trail
Weight: Men 13.8oz / Women 12.3oz
Arch support: Neutral
Base model: Dynafit Speed MTN
Pronation: Neutral Pronation / Supination / Underpronation
Arch type: High arch
Waterproofing: Waterproof

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Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.