Saucony Peregrine 13 ST Review: Aggressive Grip for Mud Season

Introduction

Mud season is the hardest stretch of the year for trail runners, and it is exactly the window the Saucony Peregrine 13 ST was designed for. This is the more aggressive, more protective variant of the Peregrine 13 line, chosen here first because of its booty-style collar, which makes it a natural fit for slush, sleet, and trails that have melted into sludge. After extended testing, it earns a solid 7.6 out of 10: not quite an eight, but clearly a shoe doing something specific very well. At a price point of $150, it sits right where most trail shoes land, and the build quality justifies it.

Who This Shoe Is For

The Peregrine 13 ST is for runners whose trails turn to mud. In much of the western United States, snow melts and refreezes into a slick, deep mud that never quite dries, and this shoe is built to handle it. If you know your local trails are about to get sloppy, this is a shoe you can buy with confidence.

It is emphatically not a commuter trail shoe. The outsole is so aggressive that wearing it to run to the trailhead would be a waste of its talents. This is a shoe for the moment the trail gets nasty.

Upper, Collar, and Fit

The upper uses a reinforced monofilament mesh with pliable overlays that hold up well to abuse. The toe box gets a dedicated overlay to keep mud and grit off your toes, and there is a gaiter trap if you want to run with gaiters. The tongue is fully gusseted, and the booty-style collar does a good job of keeping slush out during winter conditions.

A quick-pull lacing system, clearly borrowed from the Salomon playbook, tucks neatly into a basket at the top of the tongue, and it worked great throughout testing. One small caveat: the heel counter material felt a touch slick, producing slight heel slip on steep climbs. A half size down may help if you run in winter with thicker socks, but it is worth keeping in mind as you size. The shoe is not waterproof, yet the combination of mesh and collar means your feet will not get soaked out in slush and sludge.

Midsole and Ride Feel

The midsole is a TPU/EVA blend with a durometer in the 43 to 45 range, and it genuinely surprised during testing. Earlier versions of this shoe were noticeably firm, but the current foam sits at a comfortable sweet spot: not too soft, with enough protection for long days on rough ground.

On the twist test, the shoe shows a moderate amount of torsional give, in line with what you would expect from a shoe this protective. Weight is reasonable for the category, and the stack and drop figures are in the standard range for a rugged trail shoe.

Outsole: Built to Bite Into Mud

This is the headline feature. The lug pattern is so aggressive that it invites comparison to the Salomon Speedcross line, and side by side the two outsoles look remarkably similar. Saucony went all in here, and the result is outstanding grip in soft, sloppy conditions.

Durability also looks promising. Some lug patterns telegraph early that the lugs will eventually tear off, but this one gives no such signal, and a durability rating north of 600 seems realistic even on rocky terrain. An all-day adventure on Colorado’s 14ers would be the ultimate test, and based on the construction, there is little reason to expect trouble.

Things to Consider Before Buying

• Heel slip on steep climbs due to slightly slick heel counter material; consider sizing carefully.
• Not waterproof, though the collar and overlays handle slush well.
• The outsole is too aggressive for commuting or hard-packed roads.

Buying Advice

If your trails are weeks away from turning to mud, this shoe is an easy recommendation at $150. Alternatives worth considering include the Salomon Speedcross 5 and Speedcross 6, which share the same aggressive outsole philosophy, and the New Balance Summit Unknown V3, a leaner shoe with a similarly aggressive lug pattern for runners who want a little less shoe overall.

Conclusion

The Saucony Peregrine 13 ST scores 7.6 out of 10 on the strength of an exceptional mud-ready outsole, a well-executed booty-style collar, and a midsole that surprised with its comfort. It is a specialist, and a good one: buy it for mud season and it will reward you every time the trail turns to sludge.