Zen Running Club ZR01 First Run Review: A Sustainable Shoe That Can Actually Run Fast

Introduction

Sustainable running shoes have often felt like a compromise: good for the planet, but not something you would reach for on a genuinely quick training day. The ZR01 from Zen Running Club is the first shoes of this type we have tested that made us wonder whether that compromise is finally disappearing. After a couple of initial runs, including a relatively quick 10K with intervals and a relaxed 5-miler, this plant-based neutral trainer left a genuinely strong impression.

Key Specs at a Glance

The ZR01 is a neutral shoe with plant-based materials and vegan approval. It weighs 286 g in a US men’s size 9 (UK size 8), which is roughly 20 g heavier than the Allbirds Tree Dashers. The heel drop is 9 mm, with 24 mm of stack at the forefoot and 33 mm at the heel. The midsole is sugarcane based with a rocker geometry, the upper is a eucalyptus lyocell sock-fit design, the outsole is natural rubber, and the sock liner is made from castor bean.

Fit and Upper Comfort

Fit is true to size. Testing in a half size up made the shoe feel a little long, with too much space in the toe box, so most runners should order their usual size. The upper itself is one of the highlights: it delivers a nicely locked-in, slightly narrow feel through the midfoot, and the flexible, stretchy heel collar sits comfortably around the foot without any slippage.

There are clear similarities with the Allbirds upper, including springy laces and a stretchy collar, and the laces sit comfortably across the top of the foot. The main trade-off is padding: there is noticeably less cushioning at the heel than on the Allbirds, which could bother some runners, though it caused no real problems during testing.

Ride and Performance

This is where the ZR01 genuinely surprised. The sugarcane midsole feels lively and bouncy, and the rocker geometry gives the shoe a smooth rolling sensation through the stride. On a quick 10K with intervals at the end, it handled the faster paces well, which is not something you could say about the Allbirds Dashers, which feel heavier and chunkier and are happiest at easier paces.

The overall character has been compared to the Nike React Infinity Run in terms of look and silhouette, and the ride backs up that impression of a more technical, performance-oriented trainer. Cushioning felt nice underfoot on both runs, and it is a shoe that is genuinely enjoyable to keep running in. The only real complaint came from the half-size-up sample: on quicker efforts it felt slightly big, producing a bit of a slapping sensation, which reinforces the advice to go true to size.

Outsole and Durability

The outsole takes a slightly different approach to the Allbirds, with more rubber emphasis toward the rear of the shoe. With only a couple of runs on dry roads, there is nothing worrying in terms of wear. Some small debris has lodged in a few of the grooves, but the outsole has otherwise worked really well with no major issues during running.

Things to Consider Before Buying

Pricing sits at £129 / $139, which puts it roughly level with the Allbirds Dasher at around £120 and above the Veja Condor 2, which can be found for around £90. So it is not the cheaper option in the sustainable category, and some may have hoped for a slightly lower price. The lighter heel padding is another point worth checking in person if you are sensitive around the ankle collar.

Buying Advice

The ZR01 is best suited to runners who want a more sustainable option that can still handle genuine training rather than just easy jogs. If your sustainable shoe so far has been something you reach for only on comfortable runs, this is a shoe that appears capable of training sessions and quicker running too. Sizing should be true to size for most people, and walking around in it is comfortable as well.

Conclusion

The ZR01 is a genuinely promising debut. It showcases what is happening with sustainable running shoes right now: a shoe that is better for the planet, but also one you would actively want to run in. With a bouncy sugarcane rocker midsole, a comfortable sock-fit upper and respectable pace-handling, it impressed far more than expected over its first couple of runs. A lot will come down to whether the price stays in line with the rest of the sustainable running shoe market, but so far, so good.