Mammut Aenergy Trail Speed Low vs NNormal Kjerag 2

Mammut Aenergy Trail Speed Low

€190

NNormal Kjerag 2

€190

Quick verdict

Mammut Aenergy Trail Speed Low

€190

The better pick if you want:

A higher overall score (80 vs 72)
More cushioning (30 vs 26 mm heel stack)

NNormal Kjerag 2

€190

The better pick if you want:

A lighter option (36 g less)

Spec profile

Each axis ranks against the 174 products in Shoes on the site: the further out, the more it stands out in that spec (lighter, cheaper…).

Center: lowest in the category · Edge: highest

Mammut Aenergy Trail Speed Low· leads in 2

CushioningGrip

NNormal Kjerag 2· leads in 1

Lightness

Tied

Affordability

Cushioning
30 mm
26 mm
Lightness
250 gTop 11%
214 gTop 2%
Grip
4 mmTop 50%
3.5 mm
Drophigher isn't better or worse
6 mm
6 mm
Affordability
$190
$190

Technical Specifications

Compare features between Mammut Aenergy Trail Speed Low vs NNormal Kjerag 2

Best value in this comparisonOnly differences (12)

Essentials

€190

2026

July 2025

250 g

214 g

Overview

Trail Running Shoe

fast trails, mixed mountain terrain

Technical and varied trails

—

Fast-paced trail training and technical trail racing

Cushioning

6 mm

30 mm

26 mm

24 mm

20 mm

Lightweight Mammut CORE Plus foam with Flextron PRO propulsion plate

EExpure supercritical foam with dynamic rocker

Precise cushioning with energy return, A6 flex index

—

Grip & protection

Vibram® Megagrip with Litebase technology

Vibram® Megagrip Litebase with 3.5 mm lugs

360° reinforced TPU band against rocks and debris

—

Upper & fit

Lightweight breathable polyester technical mesh

—

Ortholite® 5 mm sockliner

—

Ready to buy?

On the terrain

How Mammut Aenergy Trail Speed Low vs NNormal Kjerag 2 should behave on each kind of ground, estimated from lug depth, stack height, weight and outsole rubber. Pick a ground to see what decides it.

Pick a ground							Average
Mammut Aenergy Trail Speed Low							62
NNormal Kjerag 2							61

FlatPacked, runnable trail

Cushioning and low weight make the kilometres easier; very deep lugs squirm on hard ground.

Mammut Aenergy Trail Speed Low74

Cushioning22/40
Lightness27/35
Smooth roll25/25

NNormal Kjerag 280

Cushioning20/40
Lightness35/35
Smooth roll25/25

A model built from the specs to compare shoes, not a lab measurement.

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Have you used the NNormal Kjerag 2 before?

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Video Reviews

Watch real-world YouTube reviews from content creators and the Trail Running community.

See all 10 video reviews

Mammut Aenergy Trail Speed Low

NNormal Kjerag 2

Visual Comparison

See the differences between Mammut Aenergy Trail Speed Low and NNormal Kjerag 2 in a side-by-side slider comparison.

Comparison Questions

Answers based on product data and key differences.

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Frequently Asked Questions

Which offers better value: Mammut Aenergy Trail Speed Low vs NNormal Kjerag 2?

For value comparison: The Mammut Aenergy Trail Speed Low ($190) provides premium features compared to the NNormal Kjerag 2 ($190). Consider your budget and the specific features that matter most for your trail running setup.

Which is newer, the Mammut Aenergy Trail Speed Low or the NNormal Kjerag 2?

The Mammut Aenergy Trail Speed Low is newer: it came out in 2026, and the NNormal Kjerag 2 in July 2025.

Looking for alternatives to Mammut Aenergy Trail Speed Low?

Closest in price, with what each one does better.

See all alternatives

The North Face Offtrail Ultra

The North Face

$190Score 93+13

Better than Mammut Aenergy Trail Speed Low at:

A higher overall score (93 vs 80)
More cushioning (35 vs 30 mm heel stack)
Deeper lugs for grip (5 vs 4 mm)

Compare with Mammut Aenergy Trail Speed Low

Hoka Mafate 5

Hoka

$190Score 90+10

Better than Mammut Aenergy Trail Speed Low at:

A higher overall score (90 vs 80)
More cushioning (44 vs 30 mm heel stack)

Compare with Mammut Aenergy Trail Speed Low

Saucony Xodus Ultra 4 GTX

Saucony

$190Score 77−3

Better than Mammut Aenergy Trail Speed Low at:

More cushioning (36 vs 30 mm heel stack)

Compare with Mammut Aenergy Trail Speed Low

Popular Comparisons

Compare Mammut Aenergy Trail Speed Low or NNormal Kjerag 2 with other top trail running shoes from brands such as Mammut, NNormal and more.

Shoes

Spec profile

Each axis ranks against the 174 products in Shoes on the site: the further out, the more it stands out in that spec (lighter, cheaper…).

Center: lowest in the category · Edge: highest

Mammut Aenergy Trail Speed Low· leads in 2

CushioningGrip

NNormal Kjerag 2· leads in 1

Lightness

Tied

Affordability

Cushioning
30 mm
26 mm
Lightness
250 gTop 11%
214 gTop 2%
Grip
4 mmTop 50%
3.5 mm
Drophigher isn't better or worse
6 mm
6 mm
Affordability
$190
$190

Pick a ground

Average

Mammut Aenergy Trail Speed Low

NNormal Kjerag 2

Mammut Aenergy Trail Speed Low vs NNormal Kjerag 2

Mammut Aenergy Trail Speed Low

NNormal Kjerag 2

Quick verdict

Spec profile