ASICS GEL-Nimbus 21 vs. Saucony Triumph ISO 5 review

ASICS GEL-Nimbus 21 delivers a smooth and stable ride to neutral runners. Saucony Triumph ISO 5 has a custom fit and a cushy forefoot for neutral runners...

The Saucony Triumph ISO 5 and the ASICS GEL-Nimbus 21 are neutral running shoes that can be worn by neutral runners as well as underpronators.

ADVERTISEMENTS

The uppers of the Saucony Triumph ISO 5 The preceding link takes you to Amazon.com and the ASICS GEL-Nimbus 21 are similar in that they both expose quite a bit of mesh and come with a minimum amount of no-sew overlays.

The forefoot of both running shoes is quite open, but the toe box of the Saucony Triumph ISO 5 seems to be a bit more unrestricted than that of the ASICS GEL-Nimbus 21 The preceding link takes you to Amazon.com.

The main difference between the midfeet is that the Saucony Triumph ISO 5 has individual eyelets that can be moved and adjusted the way you want, so the Saucony Triumph ISO 5 is more customizable through the saddle than the ASICS GEL-Nimbus 21.

The main difference at the back is that the ASICS GEL-Nimbus 21 comes with an external heel counter that locks your heel in, while the Saucony Triumph ISO 5 does not have much in terms of extra support at the back.

Therefore, you can expect to get more support around the heel from the ASICS GEL-Nimbus 21 than from the Saucony Triumph ISO 5.

The upper of the Saucony Triumph ISO 5 is more lightweight compared to that of the ASICS GEL-Nimbus 21, so while both running shoes should be able to deliver a good amount of comfort, the Saucony Triumph ISO 5 might feel a bit more comfortable and free compared to the ASICS GEL-Nimbus 21, while the latter might feel a bit more supportive and somewhat tighter in its upper.

Both the ASICS GEL-Nimbus 21 and the Saucony Triumph ISO 5 are meant to deliver premium cushioning to neutral runners and underpronators, but they do so in different ways.

The Saucony Triumph ISO 5 comes with one main layer of Saucony's latest in midsole technology foam, and there is another thinner layer closer to the foot to provide heel-to-toe cushioning and energy return, so you could say it has two layers, but one of them is not that prominent.

The ASICS GEL-Nimbus 21 has a midsole that consists of two different types of midsole material, but these are also ASICS' latest midsole materials.

The top layer of foam runs from heel to toe and is meant to be softer than the bottom layer of foam that runs from the heel to the midfoot.

The top layer of foam is meant to give you maximum bounce at toe-off, according to ASICS.

ADVERTISEMENTS

The second layer of foam connects well to the top layer of foam at the midfoot level, which allows the ASICS GEL-Nimbus 21 to provide a good amount of ground contact on the lateral side.

However, it does not provide as much ground contact on the medial side, because there is a small midfoot shank on that side for extra support under the midfoot.

The Saucony Triumph ISO 5, on the other hand, provides a good amount of ground contact on both sides of the running shoe.

Ground contact adds some some stability to running shoes but also helps you to achieve smoother heel-to-toe transitions.

Therefore, your ride might feel somewhat smoother in the Saucony Triumph ISO 5, but the ASICS GEL-Nimbus 21 tries to combine smoothness with support, so in the end, it might feel a bit more supportive and stable than the Saucony Triumph ISO 5.

While the ASICS GEL-Nimbus 21 comes with GEL cushioning under the heel and is said to also have forefoot GEL cushioning that is not visible on the outside, the combination of two different types of midsole foam under the heel does increase the firmness of the heel of the ASICS GEL-Nimbus 21.

Both the Saucony Triumph ISO 5 and the ASICS GEL-Nimbus 21 have been found to deliver a good amount of forefoot cushioning, with their heels being more moderately cushioned.

However, while the ASICS GEL-Nimbus 21 has a heel that could feel firm to some male and female runners, women are the ones who could feel that the heel of the Saucony Triumph ISO 5 is also a bit firm.

The conclusion is that men would get an overall softer ride from the Saucony Triumph ISO 5 than from the ASICS GEL-Nimbus 21, but the difference between the two running shoes is not that big for women, although they would get a bit more forefoot cushioning from the Saucony Triumph ISO 5.

The rubber outsoles of the two running shoes also differ quite a bit.

The Saucony Triumph ISO 5 comes with a crystal rubber outsole that is said to provide durability as well as a good amount of traction.

The outsole of the ASICS GEL-Nimbus 21 is more traditional and has a good amount of durable rubber that displays a good amount of separation for shock absorption and dissipation.

While the outsole of the Saucony Triumph ISO 5 does have some cuts in it, there isn't much separation in it, because the entire outsole is like one contiguous layer of crystal rubber.

The ASICS GEL-Nimbus 21 has two side-to-side flex grooves in the forefoot and some minor flex grooves on the lateral and medial sides, but because it delivers a good amount of forefoot cushioning, it has been found to be stiff for both men and women.

However, the Saucony Triumph ISO 5 has also been found to be stiff, so in that respect, there is little difference in flexibility between the two running shoes.

The ASICS GEL-Nimbus 21 is a tiny bit lighter than the Saucony Triumph ISO 5 for both men and women, but both running shoes are considered to be relatively heavy running shoes.

If you are a neutral runner or an underpronator who is looking for a comfortable and smooth ride from a running shoe that has a cushy forefoot, you could turn to either the Saucony Triumph ISO 5 or the ASICS GEL-Nimbus 21.

The ASICS GEL-Nimbus 21 and the Saucony Triumph ISO 5 deliver similar things to runners, however, the ASICS GEL-Nimbus 21 can be seen as being a neutral running shoe that also delivers some stability and support, while the Saucony Triumph ISO 5 can be said to provide more in terms of customization and a somewhat overall softer ride than the ASICS GEL-Nimbus 21.

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.


Disclaimer: This running shoe review on www.motioncontrolrunningshoe.org is based on personal research and analysis of data that has been made publicly available by running shoe manufacturers and other companies that are dedicated to serving runners, and is not claimed to be accurate, complete, or up to date. While the information presented in this review is intended to help you better understand the differences between running shoes, we shall not be held liable for any purchasing decisions you make based on this information. Please use your own good judgment before making a purchase. The owner of this website receives a small compensation whenever you buy a product after clicking a product link on this website. Read our full disclaimer and privacy policy.