Designed as an everyday workhorse, the Altra Lone Peak 4.0 has enough cushioning for ultra distance running and versatile traction for loose and rocky terrain.

What’s New
The updated upper features a better integrated tongue and added drainage capacity.
The updated outsole is more aggressive and provides better traction.
The addition of a trail rudder offers added stability on uneven trail surfaces.
The stone guard has redesigned to be more anatomical for improved flexibility.

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The Lone Peak 4.0 has enough cushioning to really put the miles in without weighing you down. With the outsoles added aggressiveness and the new stone guard, the Lone Peak will offer improved traction and protection for sharp trail objects.

Another noteworthy update to Lone Peak 4.0 is the fit of the upper which is snugger and provides a better lockdown in the midfoot. This gives the 4.0 a sleeker design that more ready to tackle your favourite trail adventures.

Weight: 11.3 oz (size 9) – Stack Height 21 mm (Heel), 21 mm (Forefoot)
How It Fits (based on width D)

Sizing: True to size  –  Heel Width: Medium
Midfoot Volume: Medium  –  Toe Box Width: Wide
Toe Box Height: Medium to low  –  Arch Height: Medium

A-Bound is a recycled, environmentally friendly midsole compound for resilient underfoot protection.
EVA midsole foam for durable cushioning.
Natural Ride System (NRS) design includes a more natural, foot-shaped last, zero millimeter heel to toe drop, and metatarsal-specific shapes in the outsole to assist in proper foot mechanics and allow for more natural foot movement.
Natural Foot Design follows the natural shape of the foot for ultimate comfort.
Stone Guard is a grooved, flexible TPU layer that disperses impact shock and protects feet from rock-bruising.

MaxTrac Outsole uses anatomically-shaped sticky rubber that prioritizes grip and durability on uneven terrain.

Quick Dry Trail Mesh provides optimal protection and breathability while out on the trails, with updated stitching to reinforce fit
Heel Claw construction uses a snug fit around the heel for added support.
4-point GaiterTrap uses a hook-and-loop tab that allows for easy donning of a gaiter.
5mm Contour Footbed for underfoot protection and additional comfort.



Additional information


8, 9, 9.5, 10, 11, 12


Black/Red, Gray/Yellow