The Saucony Omni ST 23 is a modern stability trainer combining premium PWRRUN PB foam with a PWRRUN stability frame and Stable Zone guidance. It aims to deliver substantial control without losing responsiveness, at a claimed 277 g and an 8 mm drop.
Positioning: responsive stability for daily training
Omni ST 23 targets road runners who need a controlled platform. Lightweight responsive foam supplies comfort, while firmer structures limit deformation where necessary.
| Feature | Saucony Omni ST 23 |
|---|---|
| Use | Road, daily training and long runs |
| Cushioning | PWRRUN PB with PWRRUN stability frame |
| Guidance | Stable Zone for pronation control |
| Drop | 8 mm |
| Claimed weight | 277 g |
| Outsole | XT-900 with articulated forefoot grooves |
| Upper | Breathable technical mesh, padded tongue and collar |
| Stability | Moderate to substantial depending on the runner |
PWRRUN PB, PWRRUN frame and Stable Zone
PWRRUN PB lowers weight and returns more energy than conventional EVA. The firmer PWRRUN frame controls peripheral compression, while Stable Zone broadens and structures the medial contact area.
This architecture distributes guidance across the shoe instead of relying on a single hard post. Support increases progressively with load, creating a smoother transition than older corrective designs.
8 mm drop and articulated grooves
An 8 mm drop is accessible to many runners. Forefoot grooves offset some stiffness from the stability frame and help the shoe move into toe-off.
Ride by session
Daily easy running
PWRRUN PB feels livelier than many heavy stability shoes. The frame calms the heel and midfoot as fatigue develops.
Long runs
Protection, secure fit and XT-900 durability suit steady mileage. Guidance remains present without abruptly interrupting rollover.
Sustained pace
It can handle moderate tempo thanks to PWRRUN PB, but control remains the priority. Very fast intervals favour a lighter neutral model when stability permits.
Compare with the Saucony Guide 19
The Omni ST 23 provides stronger guidance through its stability frame while keeping a lively PWRRUN PB ride. The Saucony Guide 19 uses CenterPath for subtler support and a less substantial feel. Choose the Omni when you want more control; choose the Guide 19 when moderate guidance is enough.
Who should choose it?
- runners needing moderate to substantial guidance
- profiles wanting more response than a traditional stability shoe
- road runners for easy and long sessions
- users comfortable with an 8 mm drop
It is less suitable when gait is highly stable and neutral or minimum weight is the overriding priority.
Fit and sizing
Padded collar and tongue should secure without blocking movement. Check forefoot width, arch pressure and heel centring as pace increases.
Tripp Sport technical verdict
Omni ST 23 modernises stability with PWRRUN PB. Frame and Stable Zone control deformation, while the foam retains a more energetic character than a traditional rigid correction.
View the Saucony Omni ST 23 at Tripp Sport
Additional test data and Tripp Sport interpretation
Doctors of Running tested the Omni 23 ST for more than 70 miles and reports a weight of about 286 g in the men’s reference size, with a stack of 40 mm at the heel and 32 mm at the forefoot, giving an 8 mm drop.
The key point is the combination of full-length PWRRUN PB with a large TPU stability frame acting mainly through the heel and midfoot. The foam stays soft and responsive while the frame limits excessive deformation. This explains why the Omni 23 ST can provide substantial guidance without the very firm feel of older medial-post shoes.
Additional source: Doctors of Running, 2026 review. Feel and measurements can vary by size and testing protocol.
FAQ
More stable than Guide 19?
Yes, its frame and Stable Zone generally provide stronger guidance.
Suitable for a marathon?
Yes for runners prioritising stability, comfort and consistency.
Is PWRRUN PB only for racing?
No. Here it lightens and energises a stable training shoe.