• Discontinued
  • Terrain


    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.

  • Arch support

    Neutral / cushion / high arch

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

    Stability / overpronation / normal arch

    Shoes for runners who need mild to moderate arch support (Around 45% of runners). Best for runners with a low arch. See the best stability shoes.

    Motion control / severe overpronation / 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.

  • Use

    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.

  • Price
  • Weight
    Men: 9.5oz
    Women: 8.5oz
  • Heel to toe drop
    Men: 4mm
    Women: 4mm

    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.

  • Heel height
    Men: 26mm
    Women: 26mm
  • Forefoot height
    Men: 22mm
    Women: 22mm
  • Width
    Men: normal
    Women: normal
  • Release date
    Jun 2016
Show more facts


We spent 7 hours reading reviews from experts and users. In summary, this is what runners think:

9 reasons to buy

  • The Saucony Zealot ISO 2 felt agreeably lightweight, according to many testers.
  • An expert reviewer reported that the upper fabrics were able to envelop the foot and keep it secure.
  • Several runners noted that the ISOFIT and the thin overlay system were able to support the foot and prevent it from moving against the shoe.
  • The underfoot cushioning system received praise from a lot of consumers; they felt that it was efficient.
  • Many runners used the word ‘comfortable’ to describe their time while wearing this running shoe.
  • The rubber outsole gained some fans because it was durable and reliable.
  • A number of purchasers stated that the supportive fabrics didn’t allow their feet to accidentally be removed from the shoe; they stayed in place during the running session.
  • A tester commented that they experienced less fatigue since they made the change to the Zealot ISO 2.
  • Several runners stated that the design of this shoe was visually pleasing.

7 reasons not to buy

  • The toe box felt a bit narrow, according to some of those who have worn it.
  • For a number of testers, it was half-a-size smaller than the usual.
  • An expert reviewer stated that the upper felt a bit stiffer than the original iteration.
  • Several runners reported that it was a bit heavier than the original version.
  • A few consumers didn’t acclimate well to the color schemes of the Zealot ISO 2, stating that they were over-the-top.
  • The heel section of the platform felt too firm at lower speeds, a tester observed.
  • Energy return wasn’t very high, according to a reviewer; it’s as though she was wearing a heavy-duty shoe without the extra bulkiness and weight.

Bottom line

The Saucony Zealot ISO 2 generally performed well, according to shoe enthusiasts. They felt that it was able to provide reliable service to those with neutral gaits. For many of them, the upper was supportive, the mid-sole was responsive, and the outsole was efficient. But there were those who stated that the first iteration was better. They didn’t think that the 2nd version was a bad model, but they also didn’t think that it was able to surpass the original Zealot ISO.


Expert Reviews

Experts are runners, 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.

Are you an expert? Apply to contribute here.

82 / 100 based on 14 expert reviews

  • 60 / 100 | Kayla Rose

    Saucony Zealot ISO 2: A Shoe for the Neutral Runner

    I ordered the Saucony styles, I believe the neutral runner would enjoy the control they gain from this shoe. Additionally, runners who like bright colors on their feet will probably enjoy the four assorted color options.

    Lastly, at $130.00, it’s MSRP price is lower compared to other Saucony styles. Therefore, for the runner that is looking for a dependable brand, without the most expensive price, may find the Zealot as the better option for them as well.

    This expert has been verified by RunRepeat. Reviews are neutral, unbiased and based on extensive testing.

  • 94 / 100 | Road Trail Run

    It’s cushy when the running is easy and spritely when you speed up. The ISO fit system really locks the foot in and they are nice and flexible.

  • 94 / 100 | Road Trail Run

    The Zealot ISO 2 is a great up tempo shoe with plenty of cushioning and stability and no mush.

  • 80 / 100 | Motion Control Running Shoes

    If you are a neutral runner who is looking for a running shoe that provides an overall very soft ride for long runs, then the Saucony Triumph ISO 2 would be a good one to consider.

Show moreless reviews
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Updates to Saucony Zealot ISO 2

  • The Saucony Zealot ISO 2 is a running shoe that’s optimized for those who have a neutral running gait. It’s made with high quality components and materials that work together in order to make the overall running output as agreeable and efficient as possible.
  • The upper unit features breathable fabrics, which accommodate airflow into the foot-chamber. Parts of this section are actually stretchable, and they allow the wearer to feel as if they’re wearing a sock. The softness of the fabrics prevents rubbing or scratching. Also, reflective materials make the shoe more visible in low lighting conditions.
  • The full-length mid-sole foam that’s present in the Saucony Zealot ISO 2 is the one responsible for doling out responsive cushioning to the foot of the wearer. It also distributes impact pressure during each step, thus keeping the underfoot experience as comfortable as possible. An add-on in the platform actually attenuates shock and leads the foot towards a smoother transition through the gait cycle.
  • Durable carbon rubber shields the rest of the sole unit and keeps it free from the potentially abrasive nature of the asphalt. Placed in the forefoot area is a more responsive rubber compound, which, on top of its traction capability, adds a bit more cushioning and flexibility. Flex grooves heighten the bendability of the platform.

Saucony Zealot ISO 2 size and fit

Standard measurements were used in the making of the Saucony Zealot ISO 2. The sizing schemes follow the regular choices of runners. The available width for both the men and women’s versions is medium. Its semi-curved shape actually follows the natural curve of the human foot.


The XT-900 is a high-quality material that’s made from durable carbon rubber. It protects the mid-sole foam from the abrasive asphalt. It also delivers traction, which is paramount to the runner’s performance.

IBR+ is a lightweight unit made from a blown rubber compound. It’s flexible and it adds a bit more cushioning to the underfoot. It’s placed in the forefoot section.

The Tri-Flex design makes use of a network of grooves, which make the platform more flexible. Because of the sole unit’s flexibility, no area of the outsole would be rendered inefficient or inactive; runners can appreciate a full-ground contact, especially when transitioning towards the toe-off.


The EVERUN is a cushioning system that’s responsible for carrying the foot and the weight of the runner. It keeps the foot well-supported at all times. It doesn’t wear off or sag easily, making it efficient even after many uses. It can also attenuate impact during the foot-strike.

The SRC Impact Zone is an add-on in the rear of the platform, which absorbs shock when the foot lands on the ground.

The High Elasticity Sock Liner is a responsive unit placed right above the main mid-sole material. It provides additional cushioning, yet it also preserves the flexibility of the platform.


Breathable mesh covers the foot securely. It allows air into the foot-chamber, essentially keeping the interior environment well-ventilated.

The ISOFIT is made up of a soft fabric that adapts to the shape, size and movements of the wearer’s foot. It basically exhibits a sock-like fit.

The Flex Film overlay system is made up of a thin material that’s fused directly with the main mesh material. It assists in making the coverage more secure. It doesn’t have a substantial weight, unlike traditional stitched overlays.

The RUNDRY Collar Lining hugs the heel and keeps it in place. It is capable of staving off moisture.

Reflective materials allow the shoe to be more visible when under low lighting conditions. Light reflects against these materials, making it easier and safer for runners to run at night. It’s a means to prevent accidents on the roads.