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  • Asics - Gel-Nimbus 21 Running Shoe - Men's - White/Deep Sapphire
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Asics Gel-Nimbus 21 Running Shoe - Men's


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    1 Review


    Gel-Nimbus 21 Running Shoe

    Designed to keep you comfortable through long distance runs, the Asics Gel-Nimbus 21 Running Shoe is loaded with features to get you through the miles. For starters, the updated Gel-Nimbus 21 has a new engineered mesh upper that offers more breathability and support and a spacious toe-box allows your toes to splay naturally through each step. As you move through each gait cycle, the GEL cushioning in the heel and forefoot absorb impact while the responsive, energized foam in the midsole allow you to run with confidence. Additionally, the Nimbus 21 features an external clutch counter provides your heel with support as the miles get long while an Ortholite footbed helps manage moisture to keep your feet comfortable throughout your long distance run.

    • Road running shoe to keep you comfortable through long distances
    • 10mm drop shifts weight forward to help reduce strain on your legs
    • Premium mesh uppers adapt to movement of foot for comfortable ride
    • Flytefoam delivers responsive, energized cushioning as you run
    • Guidance Line flex grooves encourage enhanced gait efficiency
    • Rear and forefoot GEL cushioning absorbs shock in the gait cycle
    • High abrasion rubber outsoles deliver exceptional durability
    • Lace up design allows for fit adjustments as the miles roll past
    • Item #ASC00PI

    Tech Specs

    Upper Material
    Ortholite X-40
    SpevaFoam 45
    Support Type
    Heel / Forefoot Height
    23 / 13mm
    Claimed Weight
    Recommended Use
    road running, training
    Manufacturer Warranty
    2 years

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Great update to a classic

    • Familiarity: I've put it through the wringer
    • Fit: Runs small
    • Height: 5'10"
    • Weight: 150lbs

    I LOVED my Gel-Nimbus 19s that I had previously. They were getting a little rough after 450 miles, soles were worn smooth (or missing) in alot of places, and they were starting to feel a pretty dead like they may start to give my some knee problems soon. I was real stressed when I saw they had made some changes to this newest version in the 21 and was worried they wouldn't be as good as the 19s I had come to love. I could not have been more wrong.

    The updated forefoot shape in these is amazing. I was skeptical when I put them on at first because they felt so roomy in the forefoot and toebox. There was no way all this room wasnt going to give me blisters or cause some other unseen issue. Again, I was wrong, they are SO comfortable and have been from the very first mile.

    For my first run I just did 4 miles on a treadmill to make sure they were going to be ok, and I had 0 issues, no stiffness, no break in, no hotspots, nothing. The next day I took them out for 10 miles on the road and had the same experience, nothing but awesome comfort mile after mile and my feet felt great at the end of it. As of this review I have about 75 miles on including multiple 10 milers and still have not had any issues.

    Lacing is great, it feels like it has more stretch or adjustment or something than the previous version. My other favorite small thing is that the tongue does not shift at all which was one gripe I had with previous versions. Its really easy to dial in your perfect tightness throughout and it stays once you have it where you want it.

    Plenty of cushion for long run comfort while still offering good response for shorter faster runs, and never feels soft or spongy. Breathable mesh upper is going to be a nice feature on warmer summer days for sure, but I dont have any issues with it being too cold in the winter either.

    I found the fit to be consistent with the 19, I sized up from my typical sneaker/street shoe size by a half size in both and they fit perfect. Do your feet and running a favor and pick yourself up a pair of these, you wont regret it!