Saucony Liberty ISO vs. Saucony Freedom ISO review

Saucony Liberty ISO brings you closer to a neutral plane and adds stability to your runs. Saucony Freedom ISO provides a soft, comfortable, and flexible ride to neutral runners.

The Saucony Liberty ISO and the Saucony Freedom ISO fall in two different categories of running shoes, with the Saucony Liberty ISO being a stability running shoe and the Saucony Freedom ISO a neutral cushioning running shoe.

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The uppers of the Saucony Liberty ISO The preceding link takes you to Amazon.com and the Saucony Freedom ISO look very much alike, but the Saucony Liberty ISO comes with extras.

The overlays around the saddle connect to the midsole on the Saucony Liberty ISO, while they do not on the Saucony Freedom ISO.

This should allow the Saucony Liberty ISO to provide more support around the midfoot than the Saucony Freedom ISO The preceding link takes you to Amazon.com.

Both running shoes come with engineered mesh in their uppers to reduce the need for overlays, especially on the toe box.

They both also come with a Support Frame around the heel. The difference here is that the Support Frame of the Saucony Freedom ISO hooks around the top of the heel, while that of the Saucony Liberty ISO cups the entire heel.

All in all, the Saucony Liberty ISO delivers more support through its upper than the Saucony Freedom ISO, but this is to be expected of a stability running shoe.

The midsoles of the Saucony Freedom ISO and the Saucony Liberty ISO are similar in that both consist entirely of EVERUN and come with an EVERUN topsole.

While Saucony lists both running shoes as delivering plush cushioning, the Saucony Liberty ISO is positioned a couple of notches higher than the Saucony Freedom ISO. However, running shoe lab tests paint a different picture.

According to running shoe lab tests, the Saucony Freedom ISO has a cushier forefoot than the Saucony Liberty ISO for both men and women, although both running shoes deliver an above average amount of forefoot cushioning and can be seen as having a cushy forefoot.

However, running shoe lab tests have found big differences in the amount of heel cushioning delivered by the two running shoes, with the Saucony Freedom ISO having a cushy heel for both men and women, and the Saucony Liberty ISO having a heel that is quite firm for both men and women.

The conclusion is that the Saucony Freedom ISO delivers an overall softer ride to both men and women, and the Saucony Liberty ISO has a cushy forefoot but might not be that suitable for heel-strikers.

Where the Saucony Liberty ISO and the Saucony Freedom ISO are very similar is in the fact that both running shoes have a relatively low heel-to-toe drop, so bring you closer to a neutral plane.

The heel-to-toe drop is about 5 mm for men and 4.6 mm for women in the Saucony Liberty ISO, and 4.9 mm for men and 4.7 mm for women in the Saucony Freedom ISO.

While there are differences in how high they sit off the ground, the differences in stack height are so small that one would think that the Saucony Liberty ISO is a clone of the Saucony Freedom ISO but then created for moderate overpronators instead of neutral runners.

The main difference between the midsoles of the Saucony Liberty ISO and the Saucony Freedom ISO lies in the fact that the Saucony Liberty ISO comes with a medial post to control overpronation.

The Saucony Freedom ISO is rated as providing a slightly above average amount of stability, while the Saucony Liberty ISO has been rated as delivering a large amount of stability and support.

The outsoles of the two running shoes look alike in the pattern they display and in the fact that the flex grooves are not cut till the midsole, so you more or less have continuous rubber in the outsole that you can see through.

According to running shoe lab test results, the Saucony Freedom ISO is a pretty flexible running shoe for both men and women, but the Saucony Liberty ISO has been found to be quite stiff for both men and women.

The women's version of the Saucony Freedom ISO weighs approximately 7.5 oz (213 grams), and the Saucony Liberty ISO for women weighs approximately 8.6 oz (244 grams).

The men's versions of the shoes weigh 9.3 oz (264 grams) and 10 oz (284 grams), respectively, with the Saucony Freedom ISO being the lighter one.

If you are a neutral runner who is looking for a soft ride from a running shoe that brings you closer to a neutral plane, the Saucony Freedom ISO would be the one to look into.

If you are a moderate overpronator who is looking for a good amount of stability and support from a running shoe that brings you closer to a neutral plane, the Saucony Liberty ISO would be the one to look into.

The Saucony Liberty ISO is like the Saucony Freedom ISO but then with more stability and support added to it, although it has lost flexibility and heel cushioning, according to running shoe lab tests.

Note: The weight of a running shoe depends on the size of the running shoe, so any weights mentioned in this review may differ from the weight of the running shoe you choose to wear. Running shoes of the same size were compared for this review.

The two links above will take you to Amazon.com where you can read more about the running shoes.


This review falls under: Saucony

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