Arch support
Daily running
M: 281g | W: 235g
Heel to toe drop
M: 10mm | W: 10mm
Heel height
M: 23mm | W: 23mm
Forefoot height
M: 13mm | W: 13mm
Widths available
M: Normal - D | W: Normal - B
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Shoes best for road, track and light gravel. See the best road shoes.


Shoes best for trail, off road, mountains and other unstable surfaces. See the best trail shoes.

Good to know

As long as you stick to the road or path, and if you want just one running shoe, buy a road running shoe.

Neutral / cushion / high arch

Shoes for runners who does not need any additional arch support (Around 50% of runners). Best for people with high or medium high arches. See the best neutral shoes.

Stability / overpronation / normal arch

Shoes for runners who needs arch support (Around 45% of runners). Best for runners with a normal arch. See the best stability shoes.

Motion control / severe overproanation / flat feet

Shoes for runners who needs a lot of arch support. Best for runners with flat feet. See the best motion control shoes.

Good to know

- Rule of thumb: If in doubt, buy neutral shoes to avoid injuries.
- More about arch support in this video.
- Find your arch type by following steps from this video.

Daily running

Cushioned shoes for your daily easy running. Great comfort. See best shoes for daily running.


Lightweight shoes good for races, interval training, tempo runs and fartlek. Here are the best competition running shoes.

Good to know

If you want just one pair of shoes, buy a shoe for daily running.

The height difference from the heel to the forefoot, also known as heel drop, toe spring, heel to toe spring or simply drop.

There are many opinions about what a good heel drop is. We do not recommend any in particular. Lean more in this video.


We spent 9.6 hours reading reviews from experts and users. In summary, this is what runners think:

4 reasons to buy

  • The Ultra Race 4.0 features an UltraFit upper for next-to-skin comfort.

  • This shoe has an adjustable Boa Closure System for precision fit and high performance.

  • The Z-Bound technology provides an unmatched well-cushioned ride, which gained positive responses from most runners.

  • Many were satisfied with the shoe’s lightweight and comfortable construction.

3 reasons not to buy

  • Some runners mentioned that areas near their heels were hurt when running sockless.

  • Available in limited color options.

  • A moderately expensive shoe.

Bottom line

Get the fast speed you needed on your race day with this Zoot Ultra Race 4.0. It is light weight and provides a responsive ride for your entire run. This neutral running shoe can also double as a great daily trainer.

World wide, Ultra Race 4.0 is in the bottom 20% most popular running shoes. The brand, Zoot, is the 21st most popular.

Map: Shows popularity per continent based on 1010 shoes


4 / 5 based on 65 ratings

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Expert reviews

Experts are running shoe geeks, who post reviews at youtube, directly at RunRepeat or at their own websites. Each expert is categorized from level 1 to level 5 based on expertise. See stats on expert reviews and how we calculate scores here.

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82 / 100 based on 1 expert reviews

  • 82
    Tri BombLevel 2 expert
    by Tri Bomb
    If the shoe fits....ok that's lame, but basically it's true. In our opinion, getting the right fit with this shoe is paramount, even more so than with traditional shoes. This shoe really needs to fit you like a glove without the Boa.
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These are visual presentations, not reviews

  • Millet Sports
    A durable and lightweight reel combines with aircraft-grade stainless steel laces to provide smooth, even closure for a secure, comfortable, and truly customised fit.
  • Richard Shop Zappos
    It's also got a Boa Dynamic Fit system to offer quick and precise closure.
  • Zoot Sports
    Lighter, faster, cooler; the Ultra Race 4.0 with Boa is a racing flat designed for the athlete looking for a lightweight shoe with a custom fit. 
  • Dave Jewell Endurance Sports TV
    We work very closely with the Boa Lacing system to create a lock down fit that locks the foot in place, but do it comfortably, so there are no hot spots or one single spot that is tighter than any other spot.

Updates to Ultra Race 4.0

Without a doubt, the biggest change in the Ultra Race 4.0 is the introduction of the BOA closure. This is a simple twist-type of closure that really fine tunes the fit of the shoe for superior comfort and support.

A very welcome change that a good number of runners will really enjoy is the lowering of the collar, particularly at the back of the shoe. It answers past issues of blisters near the heel and just around the collar.

A new upper called TekSheen is extremely light, adapts very well to the foot, and fairly breathable. This is the kind of upper every triathlete dream of and should work well for most runners too.

Holes are now fitted in the midsole to drain water. Drain holes are fantastic in lessening the risks of blisters and in preventing the shoe from taking on more weight.

Ultra Race 4.0 size and fit

Comfortable and snug best describe the fit and sizing of the Ultrace Race 4.0, which is very similar to the past version. The fit is narrow to medium all across the shoe. This is structured in this way to maximize the fine tuning benefits of the BOA. As always, runners who may want to get more space, especially in the toe box can always go up in size. Available widths are D and B while sizes are 7 to 14 for the men’s and 6 to 12 for the women’s.


The outsole is a combination of blown rubber for better traction and the Zoot ZPU pattern of rubber lugs for a sufficient bite on a multitude of surfaces. The rubber lugs also act as complementary elements in the protection and cushioning of the shoe.


Zoot’s premium midsole technology in the Z-Bound is used in this shoe. This midsole foam is very durable, resilient, and ultra-responsive despite being extremely light. Another technology in the midsole is the CarbonSpan+, which is technically a carbon fiber inserted in the midfoot to give torsional stability. It allows the heel and the forefoot to work separately for better and smoother transitions.


Zoot uses a TekSheen upper that is noted for its stretch and adaptive nature. This helps provide the foot-hugging wrap of this shoe. The same can be said of the BOA closure. This type of closure relies on a dial that uses a thin, but very sturdy cable. This cable is attached directly to the overlays and the sole. By simply dialing in, runners can loosen or tighten the tension to get the right and best comfort zone. A simple pull of the dial releases the tension as well.


Comparison to category means
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