Expert running shoe reviews and track spike reviews from FloTrack talent and Fleet Feet product specialists. We test carbon plate racing shoes, daily trainers, spikes, apparel, watches, supplements, and more to help runners find the best gear for training and competition. Watch in-depth video reviews and read detailed written breakdowns — all backed by real performance insight.
On's Most Advanced Racer Yet | Cloudboom Strike 2
Sep 21, 2026
The On Cloudboom Strike 2 is On's most advanced marathon racing shoe yet, and it's a full evolution of the franchise. The headline is CloudTec Sphere: a redesigned segmented forefoot with thin gaps that let the foam flex and expand in multiple directions for a smoother, more responsive feel at race pace. Underneath, a lighter, more resilient Helion HF foam and a carbon Speedboard work together to channel energy forward with efficient, aggressive propulsion. The payoff is a 6.7 oz racer engineered to keep your legs fresh deep into a marathon — the same Cloudboom franchise Helen Obiri has been running into the record books. And at $250, it delivers elite super-shoe performance at one of the best prices in the category.
What we're geeking out about:
CloudTec Sphere — the segmented forefoot flexes multi-directionally for a smoother, more responsive feel at race pace
6.7 oz on a full carbon Speedboard — featherweight for a shoe built to go the full 26.2
🛒 Grab a pair at Fleet Feet: https://www.fleetfeet.com/products/on-cloudboom-strike-2
