Facts

  • Terrain

    Road

    Shoes best for road, track and light gravel. See the best road shoes.

    Trail

    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.

    Competition

    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
    $160
  • Weight
    Men: 9.1oz
    Women: 8.2oz
  • 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: 22mm
    Women: 22mm
  • Forefoot height
    Men: 18mm
    Women: 18mm
  • Width
    Men: Standard
    Women: Standard
  • Release date
    Jul 2018
Show more facts

Rankings

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.

85 / 100 based on 3 expert reviews

  • 79 / 100 | Marijke van den Hamer

    Saucony Freedom ISO 2 - A bit too much freedom

    This is the first pair of Saucony running shoes that I’ve tried. But I had heard good things about the brand before.

    The Freedom ISO 2 is a neutral running shoe with a low drop of just 4 mm, with a forefoot height of 18 mm and a heel height of 22 mm. It only weighs 232 grams. 

     

    Upper

    The Freedom ISO 2 is part of the ISO series, which are shoes that have Saucony’s ISO Fit. The ISO Fit wraps the shoe securely around the midfoot.

    I normally use the extra eyelet to tie my shoelaces, but I found that when I did that with the Freedom ISO 2, it created too much pressure on top of my foot. So, I tried lacing them one eyelet lower.

    Even then, I had some issues with finding the balance between the ISO Fit and the rest of the upper. If I locked down my foot, firmly the rest of the upper would fit better, but the ISO Fit system would create a bit too much pressure on my foot.

    If I loosened the laces a bit, the fit of the upper would be less secure. I never quite got the hang of it.  

     

     

    Saucony has used ISO Fit before in other models, and I’ve heard it works a bit differently in every model. Some might work better for your foot than others. But the Freedom ISO 2 now also has an upper which is made out of the new ISO Knit.

    The Freedom ISO 2 has a single layer knit upper, and that does make the upper quite breathable, but that will also mean you’ll easily get wet feet in wet weather conditions. 

     

     

    The shoe doesn’t have a full heel cup but a support frame, a supportive arch made out of quite flexible plastic, running along the top of the heel counter.

     

    Midsole

    The midsole consists of Saucony’s Everun material. It is a soft cushion, but it is also responsive. You sink into the midsole a little while running, which is the kind of cushioning that I like.

    Saucony has shoes that have the full Everun midsole and shoes that only have an Everun topsole, and the rest of the midsole is made out of EVA. The Freedom ISO 2 has the full Everun midsole.

     

     

    I like that the insole of the shoe has a performance contoured footbed. It is not a very thick insole, but it does do the trick. 

    Outsole

    The outsole is made out of Crystal Rubber, which provides both traction and durability.

    The traction of this shoe is indeed pretty good. The shoe does alright on easy trails, and I even managed to run in the snow with this shoe. 

     

    Performance

    The Freedom ISO 2 is a low drop shoe. According to Saucony, this will result in you relying more on your natural gait and less on the cushioning and the stability of the shoe.

    I clearly noticed it when I started running in this shoe. I really needed to foam roll after my first run in the Freedom ISO 2.

    I’ve ran in the Skechers GoTrail Ultra 4 shoes before, which also have a 4 mm drop and are actually one of my favorite shoes, but I never had the feeling I needed to transition into those like I did with the Freedom ISO 2. 

     

     

    The Saucony Freedom ISO 2 has also been compared to the Hoka One One Elevon, although the Elevon is more of a maximalist shoe while the Freedom ISO 2 is more of a cushioned everyday running shoe.

    Both the Freedom ISO 2 and the Elevon are responsive shoes, but Saucony’s Everun in the Freedom ISO 2 has more of a springy feel to it than the Hoka Elevon. And the durability of the outsole of the Freedom ISO 2 is much better than that of the Elevon.

    The support frame on the heel together with the knit, sock-like upper do not provide enough stability. Just because the shoe has a low drop doesn’t mean you don’t need any stability.

    If I pinch the heel of this shoe, it can easily be pinched together. Something that I generally can’t do with the heels of other running shoes. 

    It is a responsive and cushioned ride, but it is not a maximalist shoe. It is more a springy everyday running shoe. It kind of reminds me of the Nike Pegasus Turbo in a way, but at the same time, it’s a very different shoe.

    The Saucony Freedom ISO 2 is something in between a racing shoe and a long distance shoe. It’s more suited for those short to medium distance training runs where you still want some ground feel, but also a little bit of cushioning. 

     

    Fit

    I ordered the shoes half a size up from my normal running shoe size, just to be on the safe side since I’ve never worn Saucony before. But it turns out that wasn’t necessary, and I could have just gone with my normal size. 

    I also noticed that the plastic overlays on the front of the shoe seemed to differ in size between the two shoes, as if one was meant to be for a size larger shoe than the other (on the left shoe the overlay is almost a centimeter longer than on the right shoe).

    This could easily have been a manufacturing mistake. However, I could feel that the left shoe fit a bit differently than the right shoe. 

     

    Conclusion

    I really like the Everun material for being soft yet responsive, although personally, I prefer a bit more of a maximal cushioning shoe. The Everun is maybe not as responsive as Nike’s ZoomX foam, but it is still pretty impressive.

    I also like the traction the Crystal Rubber outsole gives you. But I’m a bit less impressed with the upper of the Freedom ISO 2.

    It’s almost as if this shoe is actually two shoes in one; I really like the sole, but can’t come to terms with the unstable upper. I can’t really figure this shoe out.

    I really want to like this shoe, because I like the midsole material, but at the same time, there are so many things wrong with the upper. It’s a bit too much freedom for me, not in terms of bulk, but because of the instability of the upper. 

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

  • 92 / 100 | Scott Roman

    Saucony Freedom ISO 2 - This shoe might be worth the premium price 

    I tried on the first Saucony Freedom ISO model in 2016 and didn’t quite love the feel or price enough to get them over the Saucony Kinvara 7 which I wound up purchasing. 

    Fast forward to March of 2019, when I received a coupon for a free pair of shoes of my choice for pacing a half-marathon. 

    I run in neutral, low heel-toe drop shoes, and decided to try on the Saucony Freedom ISO 2 in the store since it was one of the few shoes they had that I have not used and fit my running profile. 

     

    Brand new Saucony Freedom ISO 2

     

    This second iteration of the Freedom ISO did not feel as weird as I remember the first model feeling, and after 4 minutes of running on the treadmill to test them out, I was happy with my choice.  As of writing this review (April 2019), I’ve put 75 running miles on the shoes.

    Built

    Like all Saucony shoes, these shoes are well built and look pretty good.  When you pick them up, you’ll immediately notice how sturdy they feel. 

    They almost feel a tad on the heavy side, but that might also be because I’ve recently been running in the featherweight Altra Escalante and Brooks Pureflow 7, at 8.2 and 8.9 oz, respectively. But for how much should you get from the Freedom ISO 2, they are surprisingly lightweight!

    The EVERUN midsole is a fairly standard thickness (18mm) for moderate cushioning, neutral shoes, and it’s just like I remember from the last Saucony shoe I ran in (the Kinvara 8). The midsole is springy, responsive, and does a great job of keeping your feet happy while they’re pounding the pavement. 

     

    Outsole

    The outsole of this shoe is what strikes me as the standout feature.  It’s made of Saucony’s “highly durable TRI-FLEX crystal rubber”, and I have to hand it to Saucony.

    They made a rubber compound that feels extremely durable but is also flexible enough to not make the shoe feel rigid despite almost the entire bottom being covered with the outsole material. 

    Higher mileage will show if this stuff is the real deal or not, but one thing you notice right away is how much grip these shoes have. They could almost pass as trail runners, especially if the trail run has long sections of pavement or crushed limestone. 

    If I’m running to the park where I trail run (4 miles away on pavement and sidewalks), these are the shoes I’d choose to lace up.

     

    EVERUN foam midsole with TRI-FLEX crystal rubber outsole

     

    I like the laces a lot. They are flat, which I prefer, but they are slightly stretchy, which I didn’t expect to like so much. My only complaint is they are a tad long. Just a few inches off and they’d be perfect!

    The heel cup is very sturdy, the mesh upper is breathable (though I worry about its durability), and I like that the tongue is sewn directly to the sole to give the shoe a sock-like feel.

    The ISO design is the slits in the lacing anchors on the upper (I am fairly certain of this, but it’s hard to find anything definitive online as to what specifically makes the ISO design). Saucony claims that ISO allows the upper to “adopt the shape and motion of a foot”. 

     

    Showing the tongue sewn down to the base of the shoe to keep it centered and give shoe sock-like feel

     

    It does make for a comfortable shoe, but I wouldn’t say it’s significantly more comfortable than most other shoes I’ve run in. My feet did feel a tad more secure without needing to really cinch down on the laces.

    But you don’t really need a ton of foot security from road shoes, you just need something that is comfortable and keeps the sole against your foot. That said, I have not done serious trail running in these shoes, and that could be where the ISO feature really shines.

    However, in these shoes, it seems a little overkill. Finally, I’m not sure if it is something worth adding, especially since it seems like Saucony is incorporating it into most of their new lineup. Just call the shoe the Freedom 2 and drop the ISO.  

     

    Slits in the upper lacing anchors comprising the ISO design

    Fit

    I talk about the fit a little bit in the above, section, but to summarize:

    Saucony claims that the ISO design is a “revolutionary fit system that morphs to the foot for a custom feel.” These shoes do fit pretty well, but if the premium price is coming from the ISO system, then I think I’m fine with a typical, simple upper and tongue that I can get in a cheaper shoe. 

    These shoes are comfortable, but not significantly more comfortable than the Altra Escalante or Brooks Pureflow 7 I’ve recently used. The ISO system might be worthwhile on the trails, however, it seems excessive on a road shoe.

    Size

    I wear a size 12 in most shoes, and these are true to fit. 

    • Most Adidas shoes - 12
    • Saucony Kinvara 5,6, and 7 - 12.5
    • Brooks Pureflow 6 and 7 - 12.5
    • Altra Escalante - 12
    • Saucony Freedom ISO 2 - 12

    Value

    I try to retire my shoes based on feel and wear, not mileage. Typically, one can expect 400-500 miles out of a pair of road shoes, but that depends on many things, like weight, running style, speed, and conditions. 

    I’m 6’1”, 165 lbs, in a size 12 shoe, and average ~7:15 min miles; which I imagine produces an average amount of wear compared to other male runners. I got about 450 miles out of my Kinvara 6, 7, and 8, granted my dog didn’t chew through a pair. 

    I got about the same distance out of the Brooks Pureflow 6 and Altra Escalante.  The Kinvara 10, which I’m assuming are excellent and will last for ~450 miles based on the other three other Kinvara models I’ve worn, retail for $110, whereas the Freedom ISO 2 retails for $160, a 45% increase in price! 

     

    Saucony Freedom ISO 2 at 75 miles of running

     

    Am I going to get 650 miles out of the Freedom ISO 2? I'm doubting at first, but seeing how durable the outsole even on crushed limestone trails, it just might. 

    However, even if the outsole can last to 650, I have my doubts about the midsole, but I’m eager to be proven wrong. My Freedom ISO 2 has about 75 miles on them, and they still feel and look almost brand new aside from a little dirt. 

    Since I do enjoy running in them quite a lot, I would say that if they can last till 600 miles, then they would be worth the premium price to me.  If I found them at a discount, then they would definitely be worth buying. 

    Conclusion 

    I thoroughly enjoy running in these shoes and they have been a welcome addition to my running shoe rotation. 

    They do almost everything well, but I’m not yet convinced that they are worth the premium price.  However, if these shoes last beyond 600 miles, I’ll happily conclude that they are worth it! 

    Regardless, I’m hopeful and eager to see how Saucony incorporates the outsole material into future shoes.

    Pros

    • Comfortable
    • Fast
      • Definitely a great daily runner, but I don’t think I’ll race any marathons in these shoes
      • However, I would definitely consider pacing a marathon in these shoes
    • Sturdy but not too supportive
    • Durable
    • Breathable
    • Footbox is appropriately sized for comfort, but not too big to allow the foot to move around too much
    • Lots of traction from outsole

    Cons

    • Expensive
      • I like other shoes just as much that is almost half the price
    • Just a tad stiff

    Would I recommend this to a friend?

    If they can find them at a discount, I definitely would recommend them.

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

  • 90 / 100 | Hector Barragan

    Saucony Freedom ISO: One size fits all

    Stay away from this shoe if you want to keep running at the same “boring” pace and you do not want to improve your timings. Stay away from this shoe if you do not want to run fast on that 5k race or even on that marathon.

    In short, keep using your usual brand or your current shoes if you are not ready for your next step.

     

    Why the Saucony Freedom ISO?

    This is your shoe to go from a 5k to a marathon. They are lighter than the beer that you get on the finish line.

    As you know, the word that all the time is used to describe this kind of shoes is “responsive”. Indeed, they are. Adding to that, there is a perfect balance between the cushioning and the responsive underfoot feel.

    Fits like a glove

    I have been running on these shoes for a while, some 4 pairs, and counting. Another phrase they are usually associated all the time is: “they fit like a glove.”

    I am pretty sure that you are aware about the rule of buying running shoes a half size bigger than your actual size. But yes, on these shoes, that rule applies. You will thank me later, and you are welcome.

     

    Not for fashion runners

    If you want to buy the freedom shoes because of their strong colors, these are not your shoes. You want these shoes because you want to break all your PRs. You want a cushioning shoe but without all that weight.

    If you like to read technical facts, the stack height of these shoes is 4mm, what does it mean to you? Shoes with lower stack heights tend to have a firmer and responsive underfoot feel, while higher stack height shoes tend to have a softer, more compliant feel.

    For those geek runners:

    Forefoot height: 15mm

    Heel height: 19mm

    Offset: 4mm

    For the latest model:

    • Pronation: none
    • Cushion: plush
    • Construction type: neutral
    • Surface: road, track
    • Arch: high, normal (mid)
    • Water resistant: no
    • Waterproof: no
    • Offset: 4mm
    • Heel: 22mm
    • Forefoot: 18mm
    • Weight: 9.1 oz. | 258 g.

     

    The sole

    Saucony named the style of this awesome sole, Everun. It is a foam which delivers a lot of return and cushioning. There are plenty of similar options in the market from other brands but in my opinion, Saucony did it well.

    One thing that I noticed, there are some models that feel different, like a complete or another different shoe. For example, I bought on 2017 the special edition for 4th of July, they look awesome but they feel a bit different than the blue citron or yellow/orange models.

     

    Pros

    It is light and a cushioning shoe. One size fits all. These shoes will cover from a 5k race to a marathon race. I haven't tried them beyond this mark. Well, now that I am thinking of it, my coach sometimes makes me run more than 26 miles a few weeks before the big day. (Chicago Road Runners baby!)

    It is also close to the ground with protection. Yes, this sounds with no sense but it is true.

    Cons

    Price - the original price of these shoes is $160. Please note this is the price for the newest version because, as you may be aware, you can buy the previous models (which is pretty much the same technology) on different colors.

    You can search and get a good deal on the previous models on the usual spots, or also take a look at runrepeat.com. They keep updated content and where you can get the best deal.

    Please keep a record on how many miles you run with these shoes. The thing is, they will keep looking awesome and in good shape after several miles.

    But when they reach the threshold life (which for me is around 400-600 miles) you won't get the required the protection and the responsive feature so your runs will be quite harder.

    Why this is listed as a con since this a normal behavior?

    As mentioned, they will be looking in good shape and you will want to keep training on these shoes or even race with them, but your results or performance will not be the same. So please make sure you keep this in mind and record your miles.

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

  • First look / Unboxing | Running Warehouse

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Updates to Saucony Freedom ISO 2

  • The Saucony Freedom ISO 2 is an update to a fresh series that’s meant to provide an accommodating performance to neutral pronators. It makes use of a form-fitting design to sanction the natural movement capacity of the wearer’s foot.
  • ISOKNIT is the amalgamation of knitted textile and Saucony’s proprietary sock-like construction. It’s crafted to prevent skin irritation and hot spots while also bringing breathable support. A plastic support frame at the back of the shoe holds the heel and keeps it in place.
  • The midsole unit of the Freedom ISO 2 uses a foam compound that’s made to absorb impact shock and provide responsive cushioning. It has a contoured midfoot to support and cushion the arch, as well. A flexible rubber acts as a shield against the abrasive nature of the surfaces.

Saucony Freedom ISO 2 size and fit

The Saucony Freedom ISO 2 makes use of the standard measurements to deliver a true-to-size coverage. The women’s version has a width option of B – Medium while the one for men features the D – Medium variant. The semi-curved shape of this running shoe’s last accommodates the natural curvature of the human foot.

Outsole

The outsole unit makes use of the TRI-FLEX crystal outsole, a durable material that’s meant to protect the rest of the platform from wear and tear. It has a transparent look to heighten the visuals of the external layer. Though it’s protective, it’s not firm or inflexible.

Gripping lugs allow the external layer to hold onto the ground with sureness and ease. They’re not too prominent to cause surface instability.

Horizontal and vertical grooves permit the platform to bend in conjunction with the inherent flexing capacity of the foot.

Midsole

The underfoot platform of the Saucony Freedom ISO 2 makes use of the EVERUN. This foam unit offers responsive cushioning. It’s also designed to absorb impact during the landing phase of the gait cycle, then converting that energy to kinetic force that the leg can use to push off the ground. The EVERUN material is also added into the midsole of the Guide 10, Hurricane ISO 5, and other popular running shoes from Saucony.

Upper

ISOKNIT is a material that’s designed to resemble woven textile. It has a closed construction in the vital areas, but the front and sides open up to accommodate airflow. It doesn’t have a substantial weight, and it obliges the natural flexibility of the wearer’s foot.

The ISOFIT dynamic fit system allows the upper to hug the foot precisely, giving a well-fastened yet unrestrictive wrap.

A support frame is placed on the back portion. It’s a band made of synthetic material. Its purpose is to keep the heel in place and prevent it from wobbling or exiting the foot-chamber involuntarily.

The padded collar and tongue provide cushioning to the upper parts of the foot. Moreover, they prevent in-shoe quavering.


Comparison