Saucony Guide ISO vs. ASICS GT-2000 6 review

Saucony Guide ISO provides lots of stability and support to mild to moderate overpronators. ASICS GT-2000 6 is supportive and provides enough comfort for long runs...

The ASICS GT-2000 6 and the Saucony Guide ISO are stability running shoes of a comparable level. They can both be worn by moderate overpronators.

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The uppers of the ASICS GT-2000 6 The preceding link takes you to Amazon.com and the Saucony Guide ISO are similar in that both come with light no-sew overlays that offer a good amount of support around the midfoot.

The Saucony Guide ISO The preceding link takes you to Amazon.com has sections in the saddle that can be tightened and loosened to deliver a fit the way you want it.

The ASICS GT-2000 6 has something similar in that it provides straps that can be pulled tight through the laces, but they function more to tighten the fit rather than to customize it like in the Saucony Guide ISO.

The overlays around the midfoot of Saucony Guide ISO run along the upper edge of the midsole to connect to the forefoot, so the Saucony Guide ISO more or less boxes your forefoot in. This is not the case in the ASICS GT-2000 6.

While the ASICS GT-2000 6 has thin welded-on overlays on top of its toe box, the sides are pretty open and free from overlays, except for the no-sew toe cap that covers part of the sides.

However, the bunion window has been kept open, and while it is also open in the Saucony Guide ISO, the lack of extra overlays along the upper edge of the midsole should make the ASICS GT-2000 6 feel a bit more comfortable than the Saucony Guide ISO to those who have big bunions or wide feet.

Both the Saucony Guide ISO and the ASICS GT-2000 6 provide a similar construction around the heel that is pretty closed, but the materials used on the ASICS GT-2000 6 seem to be a bit more solid.

However, you should be able to get a good amount of support around the heel from either running shoe.

All in all, both the ASICS GT-2000 6 and the Saucony Guide ISO deliver a good amount of support where overpronators need it most, but the ASICS GT-2000 6 might provide a bit more freedom of movement in the toe box and a bit more support at the back.

The midsoles of the Saucony Guide ISO differ in construction but have a similar goal.

The ASICS GT-2000 6 comes with two layers of foam and GEL cushioning that is visible in the heel.

The bottom layer of foam is meant to be more responsive and thus a bit firmer than the top layer of foam, which is meant to provide heel-to-toe cushioning.

The Saucony Guide ISO has something similar in that it comes with one main layer of foam, and then it has a topsole construction of softer foam to provide heel-to-toe cushioning as well as return energy to you.

The ASICS GT-2000 6 generally delivers a good amount of forefoot cushioning, but its heel is more moderately cushioned to perhaps feeling firm to some runners.

While the Saucony Guide ISO is meant to deliver a plush ride, according to Saucony, it has been found to deliver a good amount of forefoot cushioning, but its heel is also moderately cushioned and might feel firm to some runners.

Therefore, the ASICS GT-2000 6 and the Saucony Guide ISO also display some similarities in their cushioning profiles.

The main difference between the midsoles is that the Saucony Guide ISO provides more ground contact than the ASICS GT-2000 6, so the Saucony Guide ISO is likely to deliver smoother heel-to-toe transitions than the ASICS GT-2000 6 in addition to add some stability to your runs.

The ASICS GT-2000 6 does not provide full ground contact under the midfoot, but it does come with a midfoot shank that connects the two sides of the midsole to deliver a good amount of support under the midfoot.

Just like the Saucony Guide ISO, the ASICS GT-2000 6 comes with a support system on the medial side of the midsole that is meant to help stop the feet of overpronators from rolling too far inward.

However, unlike the medial post in the midsole of the Saucony Guide ISO, the support system of the ASICS GT-2000 6 does not go all the way up to the foot, so the degree of pronation control might be a bit less strong in the ASICS GT-2000 6 than it is in the Saucony Guide ISO.

Saucony places the Saucony Guide ISO high on the light stability scale, just under the stability scale, but lab tests give the Saucony Guide ISO fairly high marks in stability and support.

The ASICS GT-2000 6 lies just a couple of notches below the Saucony Guide ISO in the amount of stability and support delivered, but the difference between the two running shoes is not significantly large.

Therefore, you could get a good amount of stability and support as a moderate overpronator from either one of these two running shoes.

The outsoles of the ASICS GT-2000 6 and the Saucony Guide ISO differ in construction and layout.

The ASICS GT-2000 6 has a clear separation between its heel and its forefoot, and it comes with large areas of rubber with just a few flex grooves.

The Saucony Guide ISO has more flex grooves than the ASICS GT-2000 6 in the forefoot, and the outsole of the Saucony Guide ISO is also more separated in general.

However, not all of the flex grooves in the forefoot of the Saucony Guide ISO run from side to side, and because the Saucony Guide ISO delivers a good amount of forefoot cushioning, it has been found to be a stiff running shoe for both men and women.

The same thing can be said of the ASICS GT-2000 6, but stiffness generally adds stability to a running shoe.

The women's version of the Saucony Guide ISO weighs approximately 8.9 oz (253 grams), and the ASICS GT-2000 6 for women weighs 8.2 oz (232 grams).

The men's version of the Saucony Guide ISO weighs 10.5 oz (298 grams), and the ASICS GT-2000 6 for men also weighs approximately 10.5 oz (298 grams).

The ASICS GT-2000 6 and the Saucony Guide ISO are similar in many ways and provide much of the same things to runners, so if you are a moderate overpronator who is looking for a good amount of stability and support in addition to enough cushioning to keep you comfortable on the road, you could choose either the ASICS GT-2000 6 or the Saucony Guide ISO.

Neither the Saucony Guide ISO nor the ASICS GT-2000 6 sticks out in what they deliver, but your ride might be just a tad smoother in the Saucony Guide ISO.

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: ASICS | Saucony

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