Saucony
Endorphin Trainer Running Shoe - Men's
$81.45
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The Grivet Take
The Endorphin Trainer is Saucony's max-cushion plated training shoe for men, slotted between the Speed and Pro lines as the long-run specialist. 41/33 stack with an 8mm drop, dual-layer IncrediRun (new soft top foam) over PWRRUN, and a 3/4-length carbon plate that provides smooth roll without locking out forefoot flex. Best for marathon training, long run days, uptempo workouts, and runners who want carbon-plate assist with daily-trainer cushion. The spacious upper accommodates high-volume and wider feet — a notable accessibility win for the carbon-plate category. Skip it for short speed work; the geometry is built for long miles.
Fit & Feel snapshot
Fit
LengthHow the shoe fits compared with true-to-size expectations.
True to size
Toe box widthHow much side-to-side room the shoe has across the front of the foot.4 of 5
NarrowWide
Toe box volumeHow much vertical room the shoe has above the toes.4 of 5
LowHigh
MidfootHow snug or roomy the shoe feels through the arch and laces.4 of 5
SnugRoomy
Heel holdHow securely the back of the shoe holds the heel.4 of 5
LooseLocked
Ride
CushionHow much material sits underfoot. This is about amount of cushioning, not how soft it feels.5 of 5
MinimalMaximal
SoftnessHow soft or firm the cushioning feels underfoot.4 of 5
FirmPlush
RockerHow much the shoe's shape rolls you forward through the step.4 of 5
FlatAggressive
ResponsivenessHow much pop or energy return the shoe feels like it gives back.5 of 5
DeadBouncy
Support
Support TypeSupport Type describes how much built-in guidance the shoe has. Neutral shoes do not add support structure. Stability shoes use geometry, rails, firmer foam, or frame designs to create a more guided feel. Motion control shoes are the maximum-support category and are rare in modern running.
Neutral
Stability
Motion Control
No added support structure
PlatformPlatform describes the width and shape of the shoe's base underfoot. A wider platform can feel steadier even when the shoe is neutral. This is separate from Support Type.
Standard platform
How it fits
Fits true to size with a notably spacious upper that accommodates high-volume and wider feet — uncommon at the carbon-plate price tier. Toe box is rounded with adequate vertical room; midfoot is roomy. Heel hold is secure. Available in Standard (D) only for men's, but the spacious last makes it work for many wider-footed runners.
How it feels
Cushion is at the top of the scale; new IncrediRun foam on top of PWRRUN delivers a soft, energetic ride that's smoother than the firmer PWRRUN PB used in the Speed and Pro lines. The 3/4-length carbon plate provides snap and roll through toe-off without the locked-out feel of a full plate. Aggressive forefoot rocker.
Quick specs
- Category
- Marathon racer
- Surface
- Pavement · Treadmill
- Heel stackHow much shoe sits between your foot and the ground.
- 41.0 mm
- Forefoot stack
- 33.0 mm
- DropThe difference between heel height and forefoot height, measured in millimeters.
- 8.0 mm
- Weight (men's 9)
- 9.9 oz · 280 g
- CushionHow much material sits underfoot. This is about amount of cushioning, not how soft it feels.
- 5 / 5
- Support TypeSupport Type describes how much built-in guidance the shoe has. Neutral shoes do not add support structure. Stability shoes use geometry, rails, firmer foam, or frame designs to create a more guided feel. Motion control shoes are the maximum-support category and are rare in modern running.
- Neutral
- PlatformPlatform describes the width and shape of the shoe's base underfoot. A wider platform can feel steadier even when the shoe is neutral. This is separate from Support Type.
- Standard platform
- Midsole
- IncrediRun (top) + PWRRUN (bottom)
- Outsole
- rubber
- PlateA stiff layer, usually carbon, nylon, or TPU, built into some shoes to add structure, snap, or propulsion.
- 3/4-length carbon plate
- WidthsThe width options this shoe is made in. Actual availability depends on current inventory.
- D
Tech, translated
IncrediRun is Saucony's new midsole foam, used in the Endorphin Trainer as the top layer. Softer and more energetic than PWRRUN PB.
Dual-layer with PWRRUN bottom keeps the platform stable and durable.
3/4-length carbon plate provides plate-assisted propulsion without the rigid forefoot of a full carbon plate.
Frequently asked
Does the Saucony Endorphin Trainer run true to size?
Yes, the Endorphin Trainer fits true to size for most runners. The upper is notably spacious — well-suited to high-volume and wider feet, which is uncommon at the carbon-plate price tier. Available in Standard (D) only for men's, but the roomy last works for many wider-footed runners.
How does the Saucony Endorphin Trainer compare to the Endorphin Pro 5?
Both have carbon plates, but they're built for different uses. The Endorphin Trainer has a higher stack (41/33 vs 39/31), the new IncrediRun foam over PWRRUN for a softer ride, and a 3/4-length plate that allows more forefoot flex. The Pro 5 has firmer PWRRUN PB foam and a full carbon S-Curve plate for race-day propulsion. Choose the Trainer for marathon training and long runs. Choose the Pro for race-day use.
Is the Saucony Endorphin Trainer firm or soft underfoot?
Soft and energetic. The new IncrediRun top foam is softer than PWRRUN PB, and the dual-layer with PWRRUN underneath keeps the platform stable. The 3/4-length carbon plate provides snap and roll through toe-off without the locked-out feel of a full plate.
Compare it toSimilar shoes or common alternatives, with the key fit and ride differences called out.
Saucony Endorphin Speed 4
Choose the Endorphin Trainer for max-cushion long-mile training with carbon plate. Choose the Endorphin Speed 4 for a lighter nylon-plated tempo trainer with snappier feel.
Compare Saucony Endorphin Speed 4 →
Saucony Endorphin Pro 4
Choose the Endorphin Trainer for daily training with plate-assist and IncrediRun cushion. Choose the Pro 4 for dedicated race-day use with a firmer race-foam stack.
Compare Saucony Endorphin Pro 4 →
Buyer's guide
Read our running shoes guide
A clear framework for picking running shoes by surface, cushion, drop, stability, and fit.
Read the guide