Saucony Liberty ISO 2

Review Score
86%
πŸ… Highly Rated
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Saucony Liberty ISO 2: Review

β€œA stability running shoe for overpronators.”

Overview


The Saucony Liberty ISO 2 is a stability running shoe designed for runners who need extra support without sacrificing speed. This shoe is part of the Saucony Liberty ISO family and is known for its lightweight construction and responsive cushioning.

Key Features:

  • EVERUN Midsole: Provides high energy return and excellent shock absorption.
  • ISOFIT Upper: Offers a breathable, adaptive fit that feels like a sock.
  • TRI-FLEX Outsole: Enhances flexibility and provides superior traction.

The Saucony Liberty ISO 2 is an ideal choice for runners who prioritize stability and responsiveness for daily training and longer runs. Its lightweight design and supportive features make it suitable for those who overpronate (experience excessive inward rolling of the foot during walking or running) and need a reliable shoe for various distances.

According to our analysis of reviews from experts around the world, it averages a review score of 86%. This puts it in the highest rated 30% of comparable running shoes. According to our analysis of prices across the internet, at current rates it's in the cheapest 10% of running shoes.

Verdict

The consensus on the Saucony Liberty ISO 2


The Saucony Liberty ISO 2 is a well-rounded stability running shoe that excels in providing support and responsiveness. The EVERUN midsole offers excellent energy return, making it suitable for both daily training and longer runs. The ISOFIT upper ensures a comfortable, sock-like fit, while the TRI-FLEX outsole provides great traction on various surfaces. However, the insole construction could be improved, as some users reported issues with it riding up during runs. Additionally, the price point is on the higher side, which may deter some potential buyers. Overall, the Saucony Liberty ISO 2 is a solid choice for runners seeking a fast, supportive shoe for distances up to a half marathon. Its combination of stability and responsiveness makes it a standout option in the stability running shoe category.

Updates to Saucony Liberty ISO 2


The Saucony Liberty ISO 2 features several updates from the previous model, the Saucony Liberty ISO. The upper has been redesigned with a new knit material and ISOFIBER reinforcements for a more secure fit. The heel counter has also been updated to provide better lockdown without the use of a plastic exoskeleton. Additionally, the medial post has been extended to offer enhanced support for overpronators. These updates make the Liberty ISO 2 a more comfortable and supportive option compared to its predecessor.

Comparable Shoes


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The New Balance Vongo is a good alternative for runners seeking a stability shoe with a similar level of support. Both shoes offer a responsive ride and are suitable for daily training and longer distances. However, the Vongo has a higher drop, which may be preferable for runners who are not used to a low drop shoe. The Vongo also tends to be slightly more cushioned, making it a better option for those who prioritize comfort over speed.

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The Brooks Ravenna is a stability shoe that provides a balance of support and cushioning. It is similar to the Liberty ISO 2 in terms of its intended use for daily training and longer runs. The Ravenna features a BioMoGo DNA midsole, which offers adaptive cushioning that adjusts to the runner's stride. While the Liberty ISO 2 has a lower drop, the Ravenna's higher drop might be more comfortable for runners who are not used to a low drop shoe.

9 Saucony Liberty ISO 2 Pros & Cons


5 Pros

Fast ride with a dash of support.
Comfortable knit upper.
Sturdy outsole with great traction.
Responsive EVERUN midsole.
Breathable and adaptive fit.

4 Cons

Weak insole construction.
High price point.
Limited color options.
May require ordering a half size up.

In Depth


Upper

The upper of the Saucony Liberty ISO 2 features a breathable knit material that adapts to the shape of the foot, providing a comfortable and secure fit. The ISOFIT system, which includes semi-detached overlays, offers a personalized fit that enhances stability. The new ISOFIBER reinforcements add extra support, making the upper more durable and resilient. The semi-detached tongue gives a 'booty' feel, eliminating issues with the tongue riding up or down. Overall, the upper is designed to offer a snug, adaptive fit that enhances comfort and support during runs.

Midsole

The midsole of the Saucony Liberty ISO 2 is made from EVERUN foam, a material known for its high energy return and excellent shock absorption. This full-length midsole provides a responsive ride, making it suitable for both daily training and longer runs. The low 4 mm drop encourages a fore/midfoot strike (landing on the front or middle part of the foot), which can help improve running efficiency. The midsole also includes a medial TPU guidance frame, which offers additional support for overpronators, helping to maintain stability and reduce the risk of injury.

Outsole

The TRI-FLEX outsole of the Saucony Liberty ISO 2 is designed to provide superior traction and flexibility. The aggressive tread pattern ensures a firm grip on various surfaces, including roads and soft trails. The crystal rubber compound used in the outsole enhances durability, making the shoe suitable for long-term use. The flexible design of the outsole allows for a smooth transition from heel to toe, contributing to a more efficient and comfortable running experience.

Size/fit

The Saucony Liberty ISO 2 fits true to size, with a wider forefoot that accommodates runners with normal to wider feet. The ISOFIT upper adapts to the shape of the foot, providing a snug and personalized fit. Some users may prefer to order a half size up for additional room in the toe box. The semi-detached tongue and heel counter ensure a secure fit, preventing any slippage during runs. Overall, the shoe offers a comfortable and adaptive fit that caters to various foot shapes and sizes.

Comfort

Comfort is a standout feature of the Saucony Liberty ISO 2. The EVERUN midsole provides excellent cushioning, reducing the impact on joints and muscles during runs. The ISOFIT upper offers a sock-like feel, enhancing overall comfort. The semi-detached tongue and heel counter contribute to a secure fit, preventing any discomfort from slippage or hot spots. The breathable knit material keeps the foot cool and dry, even during longer runs. Overall, the shoe is designed to provide a comfortable and supportive running experience.

Cushioning

The Saucony Liberty ISO 2 features a full-length EVERUN midsole, which provides exceptional cushioning and energy return. This cushioning helps to absorb shock and reduce the impact on joints, making it suitable for longer runs. The addition of an EVERUN topsole adds an extra layer of cushioning, enhancing overall comfort. The low 4 mm drop encourages a more natural running gait, which can help to reduce strain on the lower legs. Overall, the cushioning in the Saucony Liberty ISO 2 is designed to provide a comfortable and responsive ride.

Breathability

The knit upper of the Saucony Liberty ISO 2 is designed to be highly breathable, allowing for excellent ventilation during runs. This helps to keep the foot cool and dry, even during intense workouts. The ISOFIT system, which includes semi-detached overlays, also contributes to breathability by allowing air to circulate around the foot. The breathable design of the upper ensures that the shoe remains comfortable, even during longer runs or in warmer conditions.

Stability

Stability is a key feature of the Saucony Liberty ISO 2. The shoe includes a medial TPU guidance frame, which provides support for overpronators and helps to maintain proper alignment during runs. The ISOFIT upper and ISOFIBER reinforcements add extra support, ensuring a secure fit that enhances stability. The low 4 mm drop encourages a more natural running gait, which can help to reduce the risk of injury. Overall, the Saucony Liberty ISO 2 is designed to provide a stable and supportive running experience.

Durability

The Saucony Liberty ISO 2 is built to last, with a durable knit upper and a sturdy TRI-FLEX outsole. The crystal rubber compound used in the outsole enhances durability, making the shoe suitable for long-term use. The EVERUN midsole retains its cushioning properties over time, ensuring that the shoe remains comfortable and responsive even after many miles. The ISOFIT upper and ISOFIBER reinforcements add extra durability, making the shoe a reliable choice for daily training and longer runs.

Grip

The TRI-FLEX outsole of the Saucony Liberty ISO 2 provides excellent grip on various surfaces, including roads and soft trails. The aggressive tread pattern ensures a firm grip, even in wet or slippery conditions. The crystal rubber compound used in the outsole enhances traction, making the shoe suitable for a variety of training environments. The flexible design of the outsole allows for a smooth transition from heel to toe, contributing to a more efficient and comfortable running experience.

Flex

The Saucony Liberty ISO 2 features a flexible design that allows for a smooth and natural running gait. The TRI-FLEX outsole enhances flexibility, allowing the foot to move freely and efficiently. The EVERUN midsole provides a responsive ride, while the low 4 mm drop encourages a fore/midfoot strike. The flexible design of the shoe helps to reduce strain on the lower legs and improve overall running efficiency. Overall, the Saucony Liberty ISO 2 is designed to provide a flexible and comfortable running experience.

Who should buy the Saucony Liberty ISO 2?


The Saucony Liberty ISO 2 is ideal for runners who need a stability shoe with a responsive ride. It's perfect for those who overpronate and require extra support during their runs. Runners who enjoy daily training and longer distances will appreciate the cushioning and energy return provided by the EVERUN midsole. The shoe's breathable and adaptive upper makes it suitable for those who prioritize comfort and a secure fit.

Who should not buy the Saucony Liberty ISO 2?


Runners who prefer a more cushioned shoe with a higher drop may not find the Saucony Liberty ISO 2 suitable. Those who are looking for a budget-friendly option might be deterred by the higher price point. If you have a very narrow foot, the wider forefoot may not provide the snug fit you need. For runners who prefer a more traditional mesh upper, the knit material might not be to their liking. Consider trying the Saucony Freedom ISO for a similar but more neutral option.

Saucony Liberty ISO 2: What's it good for?


The Saucony Liberty ISO 2 is great for daily running and longer distances up to a half marathon. Its stability features make it suitable for runners who overpronate and need extra support. The shoe's responsive cushioning and breathable upper make it ideal for speed workouts and tempo runs. Overall, it's a versatile shoe that can handle a variety of training needs.

5 Saucony Liberty ISO 2 FAQs


Is the Saucony Liberty ISO 2 suitable for overpronators?

Yes, the Saucony Liberty ISO 2 is designed for overpronators. It features a medial TPU guidance frame that provides extra support and helps maintain proper alignment during runs.

What is the heel-to-toe drop of the Saucony Liberty ISO 2?

The Saucony Liberty ISO 2 has a heel-to-toe drop of 4 mm, which encourages a fore/midfoot strike and a more natural running gait.

Is the Saucony Liberty ISO 2 true to size?

The Saucony Liberty ISO 2 generally fits true to size. However, some runners may prefer to order a half size up for additional room in the toe box.

What type of cushioning does the Saucony Liberty ISO 2 have?

The Saucony Liberty ISO 2 features a full-length EVERUN midsole, which provides excellent cushioning and energy return. This helps to absorb shock and reduce the impact on joints during runs.

Is the Saucony Liberty ISO 2 suitable for long-distance running?

Yes, the Saucony Liberty ISO 2 is suitable for long-distance running. Its responsive cushioning and stability features make it a great choice for distances up to a half marathon.

Saucony Liberty ISO 2 alternatives

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released
Released
Jun 2019
Jun 2018Jan 2017Dec 2022Nov 2023
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productAthletes
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Rebecca Mehra
Weight
Weight
M: 286 g
W: 252 g
M: 269 g
W: 224 g
M: 275 g
W: 232 g
M: 298 g
W: 244 g
M: 227 g
W: 193 g
Forefoot
Forefoot
18 mm
M: 24 mm
W: 23 mm
28 mm
Heel to toe drop
Heel to toe drop
4 mm
3 mm
5 mm
5 mm
5 mm
Heel
Heel
22 mm
M: 29 mm
W: 28 mm
33 mm
Brand
Brand
Saucony
NewtonNewtonHokaNew BalanceHoka
Strike Type
Strike Type
Fore/Midfoot strike
Fore/Midfoot strikeFore/Midfoot strikeFore/Midfoot strikeFore/Midfoot strikeHeel strikeFore/Midfoot strikeHeel strike
Shoe Type
Shoe Type
Low drop
Low drop
MaximalistComfortableLightweightMaximalist
Breathable
Breathable
Orthotic friendly
Orthotic friendly
Removable insole
Removable insole
Rocker
Rocker
Techs
Techs
New Balance Fresh Foam
Environmental Characteristics
Environmental Characteristics
Vegan β“‹
Vegan β“‹
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Saucony Liberty ISO 2: what the experts say (2 reviews)

Saucony Liberty ISO 2: 1 Expert video review

Saucony Liberty ISO 2: 1 Manufacturer video

Saucony Liberty ISO 2 characteristics and specifications

Characteristics
SportsRunning (+2049)
TerrainRoad (+1362)
UsagesDaily running (+1132)Speed training (+302)
BrandSaucony (+127)
Support TypeStability (+209)
Pronation TypeOverpronation (+195)
Strike TypeFore/Midfoot strike (+1116)
Arch TypeLow arch (+201)
Shoe TypeLow drop (+277)
Events10k (+711)Half marathon (+711)Marathon (+711)
ColorwaysBlackout, Blue, Green / Teal, Multicolour, Purple, Sage Quake
Specificationsvs Average
Model
2
Released
Jun 2019
Measurements
Weight
M: 286 g
W: 252 g
Heel to toe drop
4 mm
Heel
22 mm
Forefoot
18 mm

Evolution of the Saucony Liberty ISO product family

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AuthorTom Green
Tom is the founder of geerly. Based in West London, he found his passion for running in his mid-30s. He’s best at longer distances, and is a regular at the London Marathon, where he's edging closer to sub-2.40. He started geerly because he found it frustrating when shopping for running shoes spending ages trying to find the best deal in his size, and wading through verbose, waffling reviews clearly designed to appeal to search engines rather than be helpful to users. For geerly he's passionate about writing reviews that get straight to the point, and helping runners find the right gear at the best price.
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