Updates to Saucony Xodus ISO 3

  • The relatively fresh series of trail running shoes have taken another leap and brought forth a new iteration: The Saucony Xodus ISO 3. This model makes use of a more modern design that steps away from its less-aggressive predecessor. It has an edgy yet more secure look. The façade intends to stave away dirt and debris by being more secure.
  • Instead of having a two-layer platform that houses two separate foam compounds, the Xodus ISO 3 makes use of a full-length EVERUN™ midsole. The external pad features the PWRTRAC + XT-900 dual-compound configuration which offers hard-wearing traction over the outdoor topography.

Size and fit

The Saucony Xodus ISO 3 offers runners a true-to-size coverage as it makes use of the standard measurements. Runners can purchase one in the size that they’re used to getting. When it comes to width, the available options are D – Medium and B – Medium, respectively. The semi-curved shape of this running shoe follows the natural curve of the human foot.


The outsole unit of the Saucony Xodus ISO 3 utilizes the PWRTRAC + XT-900 compound. This dual-compound unit is meant to shield the rest of the platform from wear and tear. It also makes sure to provide surface traction. The PWRTRAC is also used in the Peregrine 8 and the XT-900 is utilized in the Omni 16 running shoe.

Aggressive, multi-directional gripping lugs allow this running shoe to grip the surfaces with ease. The clamp-like protrusions also ensure steady control when tackling ascents and descents.

Subtle grooves in the forefoot allow the wearer to bend the toes easily, especially when gearing towards the toe-off phase of the gait cycle.


The midsole unit of the Saucony Xodus ISO 3 is made using a full-length EVERUN™ platform. It doesn’t have a second layer that acts as a base. Its purpose is to provide cushioning to the entire underfoot. It also attenuates the impact shock generated during the foot-strike.


A breathable mesh serves as the upper unit of the Saucony Xodus ISO 3. It covers the foot while allowing air to seamlessly enter the interior chamber. Though it has breathing pores, it doesn’t permit trail debris from entering the shoe and causing any discomfort to the wearer.

A set of synthetic overlays are printed onto the façade. The goals of these add-ons are to bolster the structure of the upper and to assist in enabling a secure fit.

The Toe Shell layer is a thick material that’s placed on the forefoot. It shields the toes from rocks, foliage, and other hazards on the trails.

An external support frame sits at the heel. This lightweight plastic holds the foot in place and prevents it from wobbling or exiting the foot-chamber unintentionally.

The padded tongue and collar are responsible for cushioning the top dimensions of the foot. These parts of the shoe are also present to lock the foot down and prevent it from quivering during the running session.

Facts / Specs

Terrain: Trail
Weight: Men 12.9oz / Women 11.5oz
Drop: 4mm
Arch support: Neutral
Forefoot height: 22mm
Heel height: 26mm
Collection: Saucony ISOFIT

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Jens Jakob Andersen
Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.