Enna Proto Runner One Review: A Promising Carbon Trainer from a New Greek Brand

Introduction

Enna is a new running brand out of Greece, and the Proto Runner One is its opening statement: a carbon-plated shoe with dual-density foams and a generous helping of rubber underfoot. On paper it sits in that crowded space between super trainer and race day shoe, so the obvious question is how a first effort from a newcomer holds up against the established contenders.

The short version: it is a capable, stable, Tempo-friendly trainer that leans more trainer than racer, held back mainly by its weight and a premium price tag.

Who This Product Is For

The brand positions the Proto Runner One for both training and racing. After testing, it reads more naturally as a trainer, particularly for Tempo work. At around 305g in a UK 11 / US 12, it is a little heavier than some rivals in this category, which makes it a harder sell for short, fast efforts.

Where it makes more sense is at marathon-type efforts, where endurance and ability are being tested more than outright shoe speed. It works best for runners after a slightly more stable, higher-pace trainer rather than a dedicated 5K or 10K racer.

Upper: Comfort First

The knitted fabric upper is a genuine highlight. It is soft, conforming, and more breathable in hand than the photos suggest, though the bootie-style construction can run a little warm in very hot conditions. Serrated laces stay put through the eyelets, making it easy to get a spot-on lockdown, and the padded tongue design does an excellent job of alleviating pressure across the top of the foot.

There is generous heel padding with a very rigid heel counter, a plasticky pull tab, and extra reinforcement around the toe box and eyelet chain. Additional medial eyelets are there for wider feet, though they may go unused by most. A few reflective elements round things off for early morning or winter running.

The upper fits a wide range of foot shapes well, but its substantial feel is part of why this shoe reads as a trainer rather than a racer.

Midsole: Stable and Trampoline-Like

The midsole uses two different foam densities, measuring around 30 on the Shore A hardness scale, which is a slightly denser feel than the newest super shoe foams. Expect a trampoline-like bounce and resilience rather than mega squash, with a rubbery texture that gives the ride a trainer-like character.

The big midsole cutouts in the heel and forefoot are barely noticeable underfoot, and the ride is smooth and surprisingly stable, with a bucket-seat feel in the midfoot and torsional resistance from the plate. It smooths out the landing with a buttery quality, and the heel is more forgiving than some comparable designs.

The trade-off is pace sensitivity. This shoe sings at around 7:30 per mile marathon target pace and faster, but it is not the first choice for easy or recovery runs, and on longer sessions the weight can make holding a quick cadence feel like hard work.

Outsole: Strong Grip with a Maintenance Habit

Grip is genuinely impressive. The rubber is softer than it looks, with small ridges that provide good traction on nearly all surfaces. The main exceptions are very smooth wet concrete, stone, or marble, which challenge most shoes anyway.

The caveat is maintenance: those ridges clog quickly with dirt and debris and need a stiff bristle brush to clear. The large heel cutout and the odd forefoot cutout, which exposes a good portion of the carbon plate, are both prime spots for a specific rock to lodge at some point, so gravel paths are best avoided.

Things to Consider Before Buying

Value is the sticking point. The Proto Runner One costs €230, roughly £190, which puts it about £25 to £30 above the Zoomfly 6, a carbon-plated, high-stack shoe that is also lighter, and around £10 more than the Endorphin Speed 4 or Superblast 2. At that premium, it is a harder sell unless the specific blend of stability and Tempo performance appeals to you.

Durability looks promising. The foam should hold up well, the rubber feels resilient, and the build quality out of the box is high, with a simple, good-looking design.

Buying Advice

If you want a stable, higher-pace super trainer and are willing to pay a premium for something from an ambitious new brand, the Proto Runner One is a good bet. Enthusiasts will find plenty to like. For everyone else, the weight and price make it a slightly niche recommendation.

Conclusion

Enna has delivered a genuinely good first shoe: comfortable upper, stable and smooth midsole, and excellent grip. Lower the weight a touch and sharpen the pricing, and this would compete with the best. As it stands, it scores 10.7 out of 12 and earns its place as a Tempo-day trainer for runners who value stability over spec-sheet speed.