Brooks Adrenaline GTS 18 vs. Saucony Guide ISO review

Brooks Adrenaline GTS 18 delivers tons of stability and support with a smooth ride. Saucony Guide ISO has a cushy forefoot and provides a stable ride to overpronators.

The Brooks Adrenaline GTS 18 and the Saucony Guide ISO are stability running shoes that can be worn by moderate overpronators.

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The uppers of the Brooks Adrenaline GTS 18 The preceding link takes you to Amazon.com and the Saucony Guide ISO differ somewhat in construction.

Both come with no-sew overlays in their upper, but the Saucony Guide ISO The preceding link takes you to Amazon.com covers the upper more with overlays than the Brooks Adrenaline GTS 18.

The forefoot of the Brooks Adrenaline GTS 18 is quite open and free from overlays, mainly because it uses engineered mesh to provide structure and some degree of support in that area.

Most of the overlays on the Brooks Adrenaline GTS 18 lie more towards the back of the running shoe around the heel and part of the midfoot.

The upper and the overlays on the Saucony Guide ISO can be adjusted through the saddle, so in that respect, the Saucony Guide ISO might provide a more custom fit than the Brooks Adrenaline GTS 18.

Both running shoes provide some additional support at the back through the use of overlays.

All in all, you should be able to get a comfortable fit from both running shoes, but the Brooks Adrenaline GTS 18 might provide more comfort in the toe box than the Saucony Guide ISO.

The midsoles of the Saucony Guide ISO and the Brooks Adrenaline GTS 18 differ somewhat in construction.

The midsole of the Brooks Adrenaline GTS 18 is well segmented and provides full ground contact, both of which will add to the stability of the running shoe.

The Saucony Guide ISO has a topsole of softer cushioning and also provides full ground contact for more stability and smoother heel-to-toe transitions.

Men should be able to get more forefoot cushioning from the Brooks Adrenaline GTS 18, while women will get more from the Saucony Guide ISO.

The Saucony Guide ISO delivers a below average amount of heel cushioning to men and women, according to running shoe lab tests, so its heel might feel firm to some runners.

The Brooks Adrenaline GTS 18, on the other hand, delivers an above average amount of heel cushioning to both men and women, making the overall ride you get from the Brooks Adrenaline GTS 18 quite soft.

Both the Saucony Guide ISO and the Brooks Adrenaline GTS 18 come with a medial post to control overpronation.

The medial post of the Brooks Adrenaline GTS 18 is slightly longer than that of the Saucony Guide ISO and is backed by several densities of foam to make the process more gradual.

Running shoe lab tests rate the Brooks Adrenaline GTS 18 to be a bit more stable than the Saucony Guide ISO, with both running shoes delivering a high degree of stability.

The rubber outsoles of the two running shoes differ somewhat, but both provide a good degree of separation, although the Brooks Adrenaline GTS 18 is a bit more separated than the Saucony Guide ISO.

The flex grooves of the Brooks Adrenaline GTS 18 also run better from side to side than those of the Saucony Guide ISO, which are interrupted by some rubber.

However, running shoe lab tests have found both running shoes to be on the stiff side, with the Saucony Guide ISO being a bit more flexible than the Brooks Adrenaline GTS 18 for men, and the Brooks Adrenaline GTS 18 being a bit more flexible than the Saucony Guide ISO for women.

The women's version of the Brooks Adrenaline GTS 18 weighs approximately 8.3 oz (235 grams), while the Saucony Guide ISO for women weighs approximately 8.9 oz (253 grams).

The men's version of the Brooks Adrenaline GTS 18 weighs about 9.7 oz (275 grams), and the Saucony Guide ISO for men weighs 10.5 oz (298 grams).

If you are a moderate overpronator who is looking for a good amount of stability and support from a running shoe, you could choose either the Brooks Adrenaline GTS 18 or the Saucony Guide ISO.

The Brooks Adrenaline GTS 18 is a bit more stable and provides an overall softer ride than the Saucony Guide ISO. It is also a good running shoe for runners who lean towards severe overpronation but who do not require a motion control running shoe.

The Saucony Guide ISO provides a more custom fit and has a cushy forefoot but might not be suitable for heel-strikers.

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: Brooks | Saucony

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