Editor 
Stepping into the world of running innovations, On Running’s Cloudboom Strike LS might seem like just another shoe on the shelf. However, this high-performance footwear pushes boundaries in both design and functionality, offering runners a unique blend of comfort and speed. In this in-depth review, we explore what makes this shoe stand out, its quirks, and why it might just be the perfect piece for the dedicated athlete.
The Feat of Fit
When it comes to running shoes, finding the perfect fit is crucial—it’s the cornerstone of comfort and performance. The Cloudboom Strike aims to tick this box but doesn’t escape scrutiny. Most runners find the fit true to size, which is a comforting start. However, a fair share of athletes report that the shoe feels generous around the heel, midfoot, and toebox, pushing the boundaries of snugness with a slightly elongated structure.
The interior follows a medium to narrow volume design, offering just the right amount of wiggle room in the forefoot. The one-piece upper is sparse but doesn’t compromise on comfort, lending itself to a minimalist feel with little puffery around the tongue and heel cup. This subtle construction might take getting used to but delivers on its promise of less weight without sacrificing flexibility and support.
Performance: A Bouncing Marvel
Imagine your foot landing on a little trampoline with every step—that’s what the Cloudboom Strike’s innovative Helion HF midsole brings to the table. The shoe features a removable “bounceboard” composed of Helium Hyperfoam, engineered to return energy while cushioning blows. This unique setup makes it a formidable ally for long distances and grueling high-intensity routines.
In the arena of pace, where seconds matter, the Cloudboom excels. It sings at threshold speeds and feels increasingly at home with every accelerated stride. However, this sleek design does come with its caveats—unsteady at times, especially when the pace slows or the terrain twists and turns. It shines on long, straight roads, but take it to a meandering path, and the instability can become noticeable.
Balancing Act: Stability and Comfort
The shoe’s promise of a smooth ride is mostly fulfilled, offering a cushioned yet firm feel underfoot that supports a rolling stride. But like a high-wire act, the level of stability depends on a delicate balance. Corners can become a challenge, and some users note a ‘tipsy’ feeling at slower paces, a result perhaps of the shoe’s lightweight ethos.
A point of contention is the upper material, which some runners find abrasive around the ankles, leading to blisters. Adjustments in lacing or collar modification might mitigate this, inviting the athlete on a small personal modification journey to unlock full comfort potential.
Unique Additions
The Cloudboom Strike LS prides itself on shaving off every possible gram. The one-piece spray-on upper, characteristic of the LS variant, reduces weight without skimping on necessary protection. However, the recommendation to personalize this fit underlines its bespoke nature—it’s not a one-size-fits-all, and runners might benefit from a personalized upper if comfort is their utmost priority.
The laces, albeit premium, are excessively long, a small design oversight that’s easily remedied with a snip.
Final Thoughts: Fast and Featherlight
The On Cloudboom Strike LS is a specialty product, a nimble racing shoe designed for the performance-driven runner who cherishes speed and bounce over traditional stability. It’s a technological marvel in the sphere of running gear but demands to be understood and adapted to each user’s specific needs—certainly not for the faint of heart or runners preferring a more stable footing across all terrains.
It wins hearts with innovation and speed but loses some admirers to its selective characteristics and premium pricing. Nevertheless, for those who understand and align with its design ethos, the Cloudboom Strike LS is a trusty steed on the road to personal bests.
Frequently Asked Questions
Q: What makes the Cloudboom Strike LS different?
A: It’s a combination of lightweight design, advanced Helium HF midsole, and a removable bounceboard, focusing on speed and energy return.
Q: Can I use these shoes for training?
A: They are perfect for fast-paced runs and long distances but might not be the best for daily training on twisting courses.
Q: Is sizing an issue?
A: While generally true to size, some runners find them a bit roomy, particularly in the heel and toe areas.
Q: What if the uppers cause blisters?
A: Adjusting the lacing or experimenting with different socks could help alleviate this issue. Personalizing the fit with a custom upper is also suggested for maximum comfort.
The On Running Cloudboom Strike LS is an ally for those who dare to go fast and far but be prepared to adapt to its elite-level quirks for the best experience on your run.
