Introduction

The Salomon S/Lab series is well-regarded in the realm of trail running shoes, known for combining speed with durability. The Genesis model is designed to function effectively over longer distances on mixed-terrain trails. This article explores the capabilities of the S/Lab Genesis during long runs on a variety of surfaces.

Initial Impressions of the S/Lab Genesis

Upon first wear, it was noted that the Salomon S/Lab Genesis tends to run slightly small. Specifically, a UK size 10 felt more like a 9.5, prompting a suggestion to size up by half a size for optimum comfort. Despite this, the shoes were notably comfortable right away, even after extended indoor wear of three hours. Weighing in at 9.5 ounces (approximately 269 grams), they feel relatively lightweight compared to other options in the category.

The 8mm stack height provides a smooth roll for the foot while maintaining lateral stability. The quick lace system added convenience, and the well-designed toe box offered ample room for movement. The overall construction suggests good breathability and traction, vital for various trail conditions.

Performance Analysis

Testing the S/Lab Genesis on both flat and moderately technical trails, including sections of tarmac, revealed its lightweight and responsive nature, aided by an 8mm heel drop. However, some concerns emerged regarding underfoot protection over hard rocks, and grip performance diminished in muddy conditions. While the shoes excelled in uphill and downhill terrain, their traction did not inspire confidence in extremely slippery situations.

An extensive journey encompassing 14 miles, which included seven miles of road followed by a 5K off-road parkrun and returning home, showed them to be quite comfortable for prolonged distances. This suggests that they are suitable for steadily paced runs, particularly on smoother trails.

Conclusion on the S/Lab Genesis

Overall, the Salomon S/Lab Genesis is well-suited for long-distance training sessions on less rugged, smoother terrains. Runners seeking a lightweight option with a focus on speed may consider alternatives for extreme conditions or more technical courses, such as the Saucony Endorphin Edge or the inov-8 Mudtalon Speed, both designed with additional specialized features for varying environments.

Additional Insights from Ian Sutherland

Ian Sutherland shared his first impressions noting the S/Lab Genesis as lightweight and well-protected. He appreciated the smooth, stable ride, particularly praising the quick lace system for its ability to secure a tight fit. However, he echoed concerns regarding the shoe’s grip on muddy trails, feeling that its design favored drier conditions. After a ten-mile run, he recommended caution for distances beyond a trail half marathon due to a desire for more cushioning on longer outings.

Testing Methodology

The review process involved rigorous testing over various distances and terrains to assess the S/Lab Genesis’s performance characteristics. Reviewers focused on speed, stability, and comfort, while also examining the effectiveness of advanced features inherent to the shoe’s design.

About the Reviewers

Stephen McGlynn, a qualified healthcare professional and seasoned marathon runner, draws from extensive experience in various running disciplines. Ian Sutherland, a marathon and ultra-marathon expert, leads Trail Adventures UK and has participated in numerous prestigious marathons.