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Altra

Lone Peak 9+

TrailReleased 2025-02-06JP

Lone Peak 9+ is a zero-drop trail shoe for running, hiking, and thru-hiking. A Vibram Megagrip outsole with revised lugs improves traction on wet and dry terrain. Altra EGO cushioning and a 25 mm stack preserve ground feel, while Original FootShape fit leaves room for toe movement. An RPET ripstop-mesh upper, no-sew overlays, dual toe guard, and a thin full-length TPU StoneGuard add durability and protection.

Intended uses:
Trail
4 sources · checked 2026-08-30

Specs

Among 865 listed shoes, this is a heavier / lower-stack Trail

Weight
327.7g
Of 811 known values: 777 lower, 1 equal, 33 higher. The marker uses the midpoint of equal values.
heavierUpper 4.2%, including ties / average +61g
Drop
0mm
Of 815 known values: 0 lower, 48 equal, 767 higher. The marker uses the midpoint of equal values.
lowerLower 5.9%, including ties / average -6.8mm
Stack height (heel/forefoot)
25 / 25mm
Of 694 known values: 41 lower, 16 equal, 637 higher. The marker uses the midpoint of equal values.
lowerLower 8.2%, including ties / average -9.7mm
Carbon plate
No
83% of 786 known models have no carbon plates
Midsole
Altra EGO
Outsole
Vibram Megagrip
Reference price
$160
US price
Weight measurement and plate details
Weight note
Altra Japan lists 327.7g for men's US10.5 / 28.5cm, while Altra US lists 327.4g for the men's model. The registered value remains 327.7g with Japan-locale priority.
Plate note
This model uses a full-length thin TPU StoneGuard protective layer. Because that structure is non-carbon, carbon_plate is false.

Changes from the previous model

A comparison with the registered values for Altra Lone Peak 8.

In the registered data, weight is 24.7g heavier at 327.7g.

These are differences between registered values, not a controlled comparison at the same size and measurement conditions. See the notes below the specs for weight conditions.

View Lone Peak 8 specs

Compare within the database

See where these specs sit in the overall distribution. You can also compare within the same category.

Comparison: All data (865 shoes)

Position map

This shoeregistered average

Weight x stack height

registered average: 265g / 34.7mm (686 shoes)

The scatter plot includes only shoes with both weight and stack height registered.

Spec distributions

This shoeregistered average

Weight

This shoe 327.7g·registered average 267g (811 shoes)

97g375g

Drop

This shoe 0mm·registered average 6.8mm (815 shoes)

0mm13.8mm

Stack height

This shoe 25mm·registered average 34.7mm (694 shoes)

10.5mm58mm

Items with missing numeric values are excluded. Sample sizes and measurement conditions vary between models; this distribution is not a performance ranking.