Review: Inov-8 Mudclaw 275

Written by

Henry Howard

Ultra runner and certified running coach.

This expert review is written by

Henry Howard

Ultra runner and certified running coach.
Henry Howard has come a long way since a teacher called him "molasses" during a fifth-grade track and field event.

Now living and running in Indiana, he has completed more than a dozen marathons and is a regular age-grouper in shorter distances.

Weight

We usually consider 10 ounces a "medium" weight for a running shoe: less than 10 and we are entering the lightweight category and above 10 the shoes start to be heavy.

Heel-to-toe drop

Heel drop is the measurement in mm of the difference between the height of the heel and the toe of the sole.

A lower drop (0mm - 5mm) promotes running on mid-foot and fore-foot, while higher drops (8mm - 12mm) are more traditional and meant to support a heel-striking gait.
Expert score
8/10

Quick overview

Best for
Terrain
Best for
Grip
The Mudclaw 275 provides excellent grip and traction on all kind of terrains and surfaces
Lack Traction
Average Traction
Provide Traction
Cushioning
The Mudclaw 275 offers just the right amount of cushioning
Little cushioning
Medium cushioning
Highly cushioned
Weight

11.4

 oz
323 g
Heel to toe drop
Drop

4

 mm

Pros and cons according to our running expert

Pros and cons according to our running expert

  • Superior gripping in tough muddy, icy conditions
  • Built to last
  • Surprisingly comfortable
  • Serious protection for the feet
  • Not built for speed
  • Due to specificity, shoes may not get used often

Our verdict

The Inov8 Mudclaw 275 name says it all. Its superior lugs provide unbeatable gripping on the trail no matter what Mother Nature in in store for your run. However, if it’s speed you want, these are not the shoes for you.

Introduction Inov-8 Mudclaw 275

When eyeballing the Inov8 Mudclaw 275 (4mm drop) for the first time it was easy to see what makes them special. The 8mm cleats literally stick out.

Cushioning Type
The Mudclaw 275 is more plush than... Read more responsive: provides shock absorption and
Responsive
Plush
Cushioning Amount
The Mudclaw 275 offers just the right amount... Read more of cushioning
Little cushioning
Highly cushioned
Flexibility
The Mudclaw 275 has a good mix between... Read more flexibility and structure
Rigid
Flexible
Stability
The Mudclaw 275 has some inherent stability... Read more and support
Not particularly stable
Very stable

Impressions Inov-8 Mudclaw 275

But that just isn’t when the sneakers are in the box. On muddy, snowy and icy trails, the redesigned lugs held up to the challenge. While the new grips are positioned differently, they improve upon what was already considered a superior shoe for running in mud and related conditions.

Even in the thickest mud, the Inov8s shed it quickly allowing me to continue on my slow, methodical run. On glass-like icy surfaces, the shoes gripped the ground as well as could be expected, which was far superior to most trail shoes.

The 9.7-ounce shoes are not built for speed. So if you are looking for a shoe that handles challenging conditions and allows you to move quickly, there are better options available.

Still, the Inov8 Mudclaws have their use — and it’s reassuring to have them in my closet when needed.

While I do not participate in obstacle course races, I see these shoes as being a good option for that scenario.

The superior grip would certainly help the runner get through the relentless mud, without jeopardizing any goals for speed. (The same goes for fell runners, though I am even more unfamiliar with that version of the sport.)

While durable, the shoe also has above-average comfort. Its mesh upper quickly dries — an important factor when running in the rain or through water-logged areas.

Inov8 uses a set of gaiter fastenings as a way to put a finishing touch on a shoe designed for tough muddy, icy, slippery, water-logged terrain.

Protection Inov-8 Mudclaw 275

When it comes to protection, the Inov8 Mudclaw delivers. As previously mentioned, the shoe’s design has been created to allow the runner to get through sticky situations.

Speaking of sticky, the shoe’s outsole is made of Sticky Rubber, which has a durable nature that limits abrasion.

Up top, the shoe has a gusseted tongue that works to prevent trail debris from invading the inner part of the shoe.

And since the shoes are designed for the mud, Inov8 has created a way for gaiter attachments to be latched on to the shoe’s gaiter traps.

Rockplate
The Mudclaw 275 does not have a rock plate.
Not present
Solid protection
Lugs
The Mudclaw 275 provides excellent grip and... Read more traction on all kind of terrains and surfaces
Lack Traction
Provide Traction
Water resistance
The Mudclaw 275 is made of a water-proof... Read more material, ideal for extremely wet conditions
Poor
Water Resistant

Durability Inov-8 Mudclaw 275

This is my second pair of Inov8s. Based on my first pair and my first 50+ miles in the Mudclaws, I fully believe that the manufacture, production and design of these shoes will ensure that they are built to last.

It’s especially encouraging that even though these shoes have been used in treacherous conditions, they are not showing even basic hints of wear or tear.

While I don’t consider these everday running shoes, it’s reassuring to know that when I need to summon them, they will answer the call.

Responsiveness & Speed Inov-8 Mudclaw 275

This is where the Inov8 Mudclaw is somewhat lacking, and really where the consumer-runner needs to make the decision.

It’s a balance between a shoe that is superior in gnarly conditions but lacks speed vs. a shoe that doesn’t handle sticky conditions well but can move the runner along quickly.

When I tried to go faster on the dry, less technical trails, the Inov8 Mudclaws did not respond. They are not the shoes I want to have for a fast race.

But if I’m in an obstacle course race, a muddy, slick race or similar conditions, I’ll be reaching for the Mudclaws.

Comfort and Fit Inov-8 Mudclaw 275

Bigger than normal. Ideally, runners choose a half size smaller.

Once a runner gets the correct the size, the comfort is obvious. Inov8 uses ExteroFlow cushioning to provide a soft center along with a firm and rigid covering that prevents deterioration.

The Mudclaw is really a shoe engineering marvel — offering amazing protection on muddy courses while the minimal cushioning provides a comfortable feel for the runner.

Sizing
The Mudclaw 275 fits a little large: buy half... Read more a size smaller than ususal
Buy size smaller
Buy size bigger

Conclusion Inov-8 Mudclaw 275

For beginning trail runners who want to explore the great outdoors or for those who rarely run trails in adverse conditions, this shoe is likely not at the top of their lists.

Same goes for those who favor trail and races where speed is the name of the game.

The answer is different for those who seek out the muddiest, gnarliest, most challenging conditions. Or for those who love to face the challenges of obstacle course races, fell running or winter trail adventures.

For those who need a shoe that is secure, durable and offers superior grip, the Inov8 Mudclaw is an excellent addition to their collection.

This page contains affiliate links. As an Amazon Associate I earn from qualifying purchases.

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