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Merrell Agility Peak 4

Discontinued · trail · Trail / Long run · $120

Earlier generation of the Merrell Agility Peak line, kept for replacement lookups.

Built for trail, long run, at a target pace of 9:00–12:00 /mi on trail.

This model is no longer in production. The closest shoe you can buy today is Merrell Agility Peak 6.

The spec sheet

Weight
307 g / 10.8 oz
Heel stack
33 mm
Drop
6 mm
Plate
—
Cushioning
4 / 5
Energy return
2 / 5
Responsiveness
2 / 5
Rocker
2 / 5
Flexibility
3 / 5
Stability
3 / 5 (5 = most guidance)
Toe-box
Wide
Sizing
True to size
Durability
~400 mi
Price
$120

How it rides

The foam

Merrell tuned this midsole soft (4/5 on our cushioning scale). Energy return is modest, so the ride feels protective and damp rather than springy. 33 mm of heel stack is the modern daily-trainer sweet spot — enough foam for long miles without losing contact with the road. Combined, the ride reads as calm at 2/5 responsiveness.

The plate

There is no plate here. The midsole does all the work, so the shoe flexes naturally and stays versatile across paces — easier on the feet day to day, but without the snap of a plated shoe when you want to roll.

The geometry

A 6 mm drop is the mainstream middle — familiar to almost anyone coming from a standard trainer. The geometry is fairly traditional and flat, so the shoe follows your foot rather than steering it. Forefoot flex is middle of the road. Support is light — neutral, with a mildly steady platform.

Fit, sizing & life

The toe-box is wide, with space for the toes to spread late in long runs. It fits true to size. Expect roughly 400 miles from the outsole, about $0.30 per mile at $120.

For the foams and plates Merrell uses across its line, read the Merrell brand guide.

How it compares

Measured against the 542 currently-available shoes in the catalog. The bar shows where this shoe sits in that range.

Weight

307 g / 10.8 oz

32 g heavier than the catalog median of 275 g

Heel stack

33 mm

3 mm lower than the catalog median of 36 mm

Drop

6 mm

Level with the catalog median of 6 mm

Price

$120

40 cheaper than the catalog median of 160

Responsiveness

2 / 5

Catalog median 3 / 5

Cushioning

4 / 5

Catalog median 4 / 5

Energy return

2 / 5

Catalog median 3 / 5

Durability

~400 mi

Catalog median ~400 mi

Within the Merrell line it is heavier than the brand's median (263.5 g / 9.3 oz) and sits taller than its median stack (29.5 mm).

Closest alternatives

Current shoes with the nearest combination of weight, stack, drop, foam feel and plate.

Adidas Terrex Agravic 4(2026)

290 g / 10.2 oz · 32 mm · 6 mm drop · — · $140

Everyday trail trainer on the new, softer Lightstrike 3.

Nike ACG Pegasus Trail GORE-TEX(2026)

300 g / 10.6 oz · 35 mm · 8 mm drop · — · $175

Waterproof road-to-trail Peg for winter and mud.

New Balance Fresh Foam X Garoe

300 g / 10.6 oz · 36 mm · 6 mm drop · — · $130

Comfortable mid-price trail trainer with a roomy fit.

Salomon Genesis 2

290 g / 10.2 oz · 34 mm · 8 mm drop · — · $150

Comfortable, stable trail trainer for long technical days.

Under Armour Bandit Trail 3

300 g / 10.6 oz · 30 mm · 8 mm drop · — · $100

Hybrid trail trainer for gravel paths and light singletrack.

Lineage & siblings