On Cloudboom Strike LS
Road Racing

On Cloudboom Strike LS

Kofuzi calls it the best marathon shoe On has ever made — fast, exceptionally lightweight (6.6 oz men's 9), and more runnable than prior On racers — but at $330 he can only recommend it to dedicated shoe nerds and collectors. — Kofuzi

Physical blueprint

Where this shoe sits

Weight 184 g
Heel stack 41.0 mm
Drop 4.0 mm
Cushioning High

Best for

Marathon Racing
Suits Forefoot, Midfoot strikers
Pronation Neutral
Surface Road
Lifespan race-day only mi

Specifications

Weight (M9)
184g (6.5 oz)
Stack (Heel)
41.0 mm
Stack (Forefoot)
37.0 mm
Drop
4.0 mm
Midsole
Helion HF (40% bio-based PEBA superfoam) with Bounceboard drop-in layer of Helion HF; CloudTec elements
Plate
Carbon (Full-length carbon fiber Speedboard)
Outsole
Unique rubber compound for traction
Upper
LightSpray robot-sprayed seamless filament upper (single-step, no glue/seams/laces); 30 g upper weight
Lacing
Slip On

Fit Profile

Length
True To Size
Forefoot Width
Narrow
Midfoot Width
Snug
Heel Width
Snug
Lockdown
Good
Toe Box
Snug
Sizing
True To Size

Ride Characteristics

Cushioning
High
Stability
Neutral

Durability

Expected Miles
race-day only

Expert reviews · 1 reviewer · grouped per channel

K
Kofuzi Youtube

Kofuzi calls it the best marathon shoe On has ever made — fast, exceptionally lightweight (6.6 oz men's 9), and more runnable than prior On racers — but at $330 he can only recommend it to dedicated shoe nerds and collectors.

Best for: Marathon racing for shoe nerds and collectors willing to pay premium; Kofuzi's pick over the standard Cloudboom Strike for the marathon distance.

Frequently asked questions

How does the On Cloudboom Strike LS fit?

Kofuzi notes: Laceless mid-top upper that stretches to slip on, then morphs back; pressure across widest part of foot but otherwise comfortable; no chafing despite the unfinished-looking edge.

Per Kofuzi.

How much does the On Cloudboom Strike LS weigh and what is its drop?

The On Cloudboom Strike LS weighs about 184g (men's 9), has a 41.0mm heel stack and a 4.0mm heel-toe drop.

What shoes is the On Cloudboom Strike LS compared to?

Reviewers compare the On Cloudboom Strike LS to On Cloudboom Strike, On Cloudboom Echo 3, Adidas Adizero Adios Pro 3.

Per Kofuzi.

How many experts have reviewed the On Cloudboom Strike LS?

Next Pair aggregates 1 expert review of the On Cloudboom Strike LS, including Kofuzi.

Per Kofuzi.

Where it sits among similar shoes

Compared to other road racing in the same lane.

Weight · lower = lighter Men's size 9
On Cloudboom Strike LS
184g
Mizuno Hyperwarp Elite
170g
Mizuno Hyperwarp Pro
198g
Adidas Adizero Adios Pro 4
201g
Heel stack · higher = more cushioning mm
On Cloudboom Strike LS
41.0mm
Mizuno Hyperwarp Elite
39.0mm
Mizuno Hyperwarp Pro
46.0mm
Adidas Adizero Adios Pro 4
39.0mm
Drop · higher = more heel-leaning mm
On Cloudboom Strike LS
4.0mm
Mizuno Hyperwarp Elite
3.5mm
Mizuno Hyperwarp Pro
5.5mm
Adidas Adizero Adios Pro 4
6.0mm

On Cloudboom Strike LS

Data-driven recommendation backed by expert reviews.

Ask the advisor
Methodology. Specs come from manufacturer data and authoritative third-party catalogs. Reviewer verdicts are summarized from named, linked sources — never copied verbatim. We weight clinical and lab-tested sources more heavily than community commentary, but the specific weights stay internal. Never sponsored, never paid placement.
Last updated 2026-06-14