Merrell Mor Flight Review: A Comfortable Road-to-Trail Cruiser at a Friendly Price

Introduction

The Merrell Mor Flight is a new trail running shoe aimed squarely at runnable trails, and it arrives with a very appealing price tag of £100 or $100. It is a lightweight option: 246g (8.7oz) in a UK size 9, with a 6.5mm drop and a stack of 26.5mm at the heel and 20mm at the forefoot. On paper, that is a recipe for a nimble, easy-going shoe, and in practice that is exactly what it delivers.

Who the Mor Flight Is For

This is a road-to-trail cruiser, not a technical mountain shoe. The outsole tells the story before you even lace up: relatively few lugs, plenty of exposed foam, and 2mm lugs in the middle of the foot that are flat and broad enough to be designed with road use in mind. Slightly deeper 3mm lugs sit at the edges to help on light trails, especially through corners. It is not built for very technical or muddy trails, and Merrell has other shoes in its range for that job.

For first-time trail runners, though, that focus is a strength. At the price, the accessible feel, fuss-free comfort, and balanced ride make it an easy entry point into off-road running.

Fit and Upper

Sizing is straightforward. Both testers ran in their normal Merrell size, and the fit was spot on. There is an instant disappearing feel on foot, with good heel hold from a mid-level padded heel collar, solid midfoot lockdown, and nice wrap from the knitted tongue. The toe box has good room in the big-toe-knuckle sweet spot and enough clearance across the top of the toes, helped by a fairly flexible upper.

The upper itself is a jacquard mesh with an internal bootie, with light reinforcement around the toes but noticeably less than on more substantial trail shoes. Cushioning around the heel and tongue is generous, and an internal heel counter adds stability at the back. The flexible, airy upper also gives the shoe a breathable feel that suits warm-weather running.

Midsole and Ride

Merrell has fitted its best midsole material here: Float Pro foam, which is lightweight with a touch of bounce. A mild rocker profile smooths out the ride on road and nicely runnable trails, and the wide forefoot makes for a stable, balanced platform. The midsole sits at a medium-soft tune, with enough cushioning to feel good on firmer ground and road, while still preserving some ground feel on lumpier, rooted sections.

In feel, it slots somewhere between a firmer shoe like the inov-8 Trailfly and something more cushioned like the Hoka Speedgoat 5, and it lands in a happy middle ground. It is also impressively light for the category, coming in barely heavier than Merrell’s racier Skyfire. For shorter, faster tamer trails, it could even be chosen over Merrell’s own Agility Peak.

On the Trail: Ride and Grip

Over testing that covered 55km of mostly relaxed runs plus some strides, the shoe was used more or less exactly as intended: easy miles on groomed forest paths, a little gravel, grass, and the road sections in between. On dry, clear trails it is genuinely enjoyable: comfortable, light, and quick enough to pick up the pace when wanted. On the road, it runs like a proper road shoe with no skittery feeling from the lugs.

Grip is where the limits show. The shallow, twin-length lugs cope with light trails, hard-packed mud, and flat, forgiving terrain, but on wet muddy patches the shoe slips quickly. On wet rock or uneven ground during descents, it never feels fully reliable underfoot. Testers also noted early signs of outsole wear at the heel after 55km, plus plenty of exposed midsole foam, so durability on abrasive or gritty surfaces is worth watching.

On the Road: Where It Feels Most at Home

As a road-to-trail option, the Mor Flight is genuinely comfortable on tarmac. It has been compared with the Nike Pegasus Trail in purpose, but at a fair bit cheaper, and it was enjoyed more than the On Cloudsurfer Trail, which testers found slightly firmer. The Merrell feels soft but not squishy or unstable, with a balanced ride that stays comfortable over longer distances on light trails.

If you want a bit more bite in a road-to-trail shoe, the Hoka Challenger 7 is a good upgrade option with a slightly more substantial and durable outsole that handles mild mud and shifting ground better. At the same UK price, the Decathlon Evadict MT2 Cushion is a good-value alternative, though it is a more trail-focused all-rounder that is less comfortable and weaker on the road. For tougher rugged trails or ultras, the Speedgoat 5 or Merrell Agility Peak are better places to look, though at a higher spend.

Things to Consider Before Buying

The main trade-offs come down to conditions and longevity. In anything wet or slippery, especially on steep descents, the outsole does not offer enough reliable grip, and it would not be the pick for technical, muddy, or mountainous trails. Shallow lugs and limited rubber coverage also raise questions about long-term durability on gritty terrain. And with minimal toe protection up top, you are clearly trading some robustness for that light, road-shoe feel.

Verdict and Buying Advice

At £100 or $100, the Merrell Mor Flight is good value for what it does. It is comfortable, light, balanced, and easy to run in from the first run, with a positive mix of protection, mild responsiveness, and stability. For runners who stick to park paths, gravel roads, and well-groomed forest trails, or who want a first trail shoe that can also handle road runs, it ticks the boxes very well.

It is also the kind of shoe you could pack as the single pair for a trip where you expect mixed terrain, as long as the forecast is dry. If your running regularly includes wet descents or rougher ground, look elsewhere; otherwise this is one of the better road-to-trail cruisers available at this price.

Conclusion

The Merrell Mor Flight does one job and does it well: easy, runnable, mostly dry trails and plenty of road in between. With a light, comfortable ride, a quality midsole, and an accessible price, it is a strong pick for beginners and relaxed trail runners alike. Just keep it away from mud, wet rock, and steep technical descents, and it should serve you very well for most of the year.