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Brooks Ariel 20

Discontinued · road · Daily / Long run · $160

The women's-specific counterpart to the Beast motion-control line.

Built for daily, long run, at a target pace of 9:30–12:30 /mi on road.

This model is no longer in production. The closest shoe you can buy today is Brooks Adrenaline GTS 25.

The spec sheet

Weight
320 g / 11.3 oz
Heel stack
32 mm
Drop
12 mm
Plate
—
Cushioning
4 / 5
Energy return
2 / 5
Responsiveness
1 / 5
Rocker
1 / 5
Flexibility
2 / 5
Stability
5 / 5 (5 = most guidance)
Toe-box
Wide
Sizing
True to size
Durability
~500 mi
Price
$160

How it rides

The foam

Brooks tuned this midsole soft (4/5 on our cushioning scale). Energy return is modest, so the ride feels protective and damp rather than springy. 32 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 muted at 1/5 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 tall 12 mm drop tips weight forward off the heel, which usually suits heel strikers and calves that dislike low-drop shoes. The geometry is fairly traditional and flat, so the shoe follows your foot rather than steering it. The forefoot is stiff, so it rolls rather than bends — a lever, not a slipper. It offers real guidance through the gait cycle — useful for runners whose form collapses when tired.

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 500 miles from the outsole, about $0.32 per mile at $160.

For the foams and plates Brooks uses across its line, read the Brooks 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

320 g / 11.3 oz

45 g heavier than the catalog median of 275 g

Heel stack

32 mm

4 mm lower than the catalog median of 36 mm

Drop

12 mm

6 mm higher than the catalog median of 6 mm

Price

$160

Level with the catalog median of 160

Responsiveness

1 / 5

Catalog median 3 / 5

Cushioning

4 / 5

Catalog median 4 / 5

Energy return

2 / 5

Catalog median 3 / 5

Durability

~500 mi

Catalog median ~400 mi

Within the Brooks line it is heavier than the brand's median (283 g / 10.0 oz) and sits lower than its median stack (36 mm).

Closest alternatives

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

New Balance 1540 v4

335 g / 11.8 oz · 32 mm · 10 mm drop · — · $190

Maximum motion-control trainer with a huge, stable platform.

Nike Journey Run

305 g / 10.8 oz · 34 mm · 10 mm drop · — · $90

Extra-plush entry trainer built for comfortable first miles.

Adidas Runfalcon 5

303 g / 10.7 oz · 33 mm · 10 mm drop · — · $70

Sub-$70 starter shoe for short runs and gym duty.

Adidas Duramo Protect

290 g / 10.2 oz · 32 mm · 10 mm drop · — · $90

Weatherized Duramo for wet-weather road and path miles.

On Cloudflyer 5

320 g / 11.3 oz · 31 mm · 10 mm drop · — · $170

On's gentle-stability trainer with a wide, guided base.

Lineage & siblings