Scarpa Neutron Shoe Review


Scarpa, whose name is an acronym (Società Calzaturiera Asolana Riunita Pedemontana Anonima, which translates to Associated Shoe Manufacturing Company of the Asolo Mountain Area) got its start in 1938, when the shoe makers of the area came together to create the best footwear. In the years following, they have become a leader in all gear related to the mountains, especially skiing and mountaineering.

In the mountains, running has evolved. Throw in technical trails, a few thousand vertical feet, a little scrambling, and an activity humans have done for both survival and sport for millennia takes on a whole new dimension. Now infused with elements of climbing, peak-bagging, and route-finding, running has become one of the more incredible ways to explore the mountains. And it was with the goal of building product for efficient movement in rugged terrain that Scarpa completely redesigned its running shoes for 2016. Two years in the making, the Scarpa alpine running line is finally here, and we were able to test out and review the Scarpa Neutron, let’s take a look….


The upper of the Scrapa Neutron consists of a breathable polyester mesh overlayed with a synthetic leather foot cage that will allow your feet to stay cool, while still resisting wear in high-abrasion areas.

Breathable Mesh Upper

Scarpa added the wisely designed lace pocket to the tongue, that allows you to tuck in the laces to avoid getting tripped up by those grabby branches and twigs.

Lace Pocket on the Top of the Shoe Tongue – Tie, Tuck and Run


The stand out feature of this shoe is the Vibram lugged sole, that maximizes grip performance on all types of terrain.

Vibram Outsole Gives Great Underfoot Bite

A dual-density EVA midsole with a six-millimeter drop and H-EVA insole completes the shoe giving it a solid, but cushioned flexibility.

Dual-Density EVA Midsole with a Six-Millimeter Drop
H-EVA Insole

Fit and Feel

The shoe size is right on the money for me. I take a 12.5 and I have the 12.5, the fit is perfect. The toe box is snug, but not tight, there is a little bit of flex in the mesh upper that allows for some extra comfort.

The heel box is conforming and holds the foot well, provided you have the laces tied appropriately you won’t get any movement or slippage.

The tongue is adequately padded and gusseted within the shoe to provide a secure foothold and help keep debris out. The laces are on the thinner side, they do pull the shoe tight and stay fastened. For a non waterproof shoe, the upper does a really great job at restricting what enters the inside. I have been through some muddy and wet trails and my socks stayed dry.

Gusseted Tongue

At just over 10 ounces (size 12.5), the shoe falls into the middle of the road as far as weight goes, not light, but by no means heavy. The Neutron gives a smooth ride with responsive cushioning. Again, the best feature is the Vibram outsole, that does a superb job at grabbing everything from slippery muddy trails to slick rocks.

Vibram Grip

The Neutron is built to endure tough conditions. The upper, the toe box and the sole all took repeated beatings, over rocks, bashed by sticks, dunked in the mud, and just kept asking for more… My only concern is the longevity of the shoe, the glue that holds the upper to the lower is starting to separate a little bit. While it is not creating any problems at this point, I will have to see what it does in another hundred miles.

Upper and Lower Separation

It should be noted that when I run trails, I am by no means gentle on my gear; I am jumping over logs, running down the steepest descents and looking for puddles and that mud….do I abuse shoes more than the normal trail runner?  …more than likely. But that is what we do!

Technical Specifications

  • Upper: Synthetic Leather & Polyester mesh
  • Lining: Polyester
  • Insole: H-EVA Plate
  • Midsole: Compression Molded EVA
  • Sole: Vibram Genetic
  • Drop: 6mm ; 25mm – 19mm
  • Last: TRN
  • Sizes: 39 – 47, 48(half sizes)
  • Weight: 275g ; 9.7oz (1/2 pair size 42)

Final Thoughts

The Scarpa Neutron trail running shoes strike a balance between rock-solid grip and cushioned protection that make these a superior daily driver for trail running. Delivering protective performance for powerful runs that will allow you to rack up the miles in comfort. While outdoor enthusiasts generally associate the Scarpa brand with climbing, mountaineering and downhill winter adventures, the Neutron strengthens its credibility in the trail running line.

For more information or to purchase, please visit :   MSRP  $129

Mark Ranum: Mark is an outdoor adventure seeker, living in the beautiful state of Michigan. He loves trekking hundreds of miles through the wilderness, whether on two feet or two wheels, always looking for the next new trail or road to see where it will take him.
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