• Right side view of GEL-NIMBUS™ 21, SAFETY YELLOW/BLACK
  • Front Right view of GEL-NIMBUS™ 21, SAFETY YELLOW/BLACK
  • Front Left view of GEL-NIMBUS™ 21, SAFETY YELLOW/BLACK
  • Left side view of GEL-NIMBUS™ 21, SAFETY YELLOW/BLACK
  • Bottom view of GEL-NIMBUS™ 21, SAFETY YELLOW/BLACK
  • Alternative image view of GEL-NIMBUS™ 21, SAFETY YELLOW/BLACK



Men's Shoes
Style #: 1011A169.750
Original Price£155.00 Sale Price £108.50

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Run further than you thought possible in the GEL-NIMBUS™ 21 running shoe for men by ASICS - packed full of plush cushioning and special technologies to respond to your natural stride.

The GEL-NIMBUS™ 21 shoe is fitted with our I.G.S™ (Impact Guidance System) technology: a construction technique that allows the shoe to respond to your natural gait. The TRUSSTIC SYSTEM™ technology provides added stability so you can focus on pushing yourself further than ever.

The upper is made from Jacquard mesh and will fit snugly, allowing air to flow and keep the foot fresh as you run and run. Our famous GEL™ technology in the front and rear sole gives you energised cushioning in the form of shock-absorbing silicone for heavy-impact activity. Meanwhile, FLYTEFOAM™ Propel technology in the midsole offers excellent bounce and toe-off. This lightweight foam formulation has a special high-energy return elastomer helping to put a spring in your step. Gain even more bounce with our SpEVA insole, which also helps the shoe last.

To ensure a great fit, there's an external heel counter which holds your heel firmly, keeping you comfortable as you pound the miles. And we've added an AHARPLUS™ heel plug on the outsole to help you be able to run as long as you want. This ASICS High Abrasion Resistance Rubber is a tough rubber compound used to reduce excessive wear.

If the light is dim you'll still be seen thanks to the reflective detail we've included. All of this lets the shoe take the strain so you can concentrate on what matters: your breathing and your pace.

  • I.G.S™ (Impact Guidance System) technology
  • Jacquard mesh upper
  • FLYTEFOAM™ Propel technology
  • FLYTEFOAM™ Lyte technology
  • AHARPLUS™ heel plug
  • TRUSSTIC SYSTEM™ technology
  • External heel counter
  • GEL™ technology
  • SpEVA™ insole
  • Moulded EVA sock lining
  • Heel clutching system
  • Biomass FLYTEFOAM™ NANO technology
GEL-NIMBUS™ 21 is rated 4.8 out of 5 by 115.
Rated 5 out of 5 by from V happy Superb shoe. Extremely comfortable and soft (I am recovering from a broken ankle and bought the shoe to walk around in). It looks great too.
Date published: 2020-04-25
Rated 5 out of 5 by from Awesome shoe Quality is top notch as always with ASICS products. First pair of runners I’ve bought as previously used Nike, but I doubt I would ever go back. Fit is true to size.
Date published: 2020-04-23
Rated 5 out of 5 by from Gel-Nimbus 21 Great shoe. Comfortable, supportive, had good bounce to to it too.
Date published: 2020-02-12
Rated 5 out of 5 by from Comfort and Performance Terrific for the price. Great all-around running shoe.
Date published: 2020-02-09
Rated 5 out of 5 by from The quality justifies the price Great cushioning and support. At 195cm and 105 Kg I need both and this delivers. Great fit and Asics go up to big sizes. Good website and delivery experience.
Date published: 2020-02-06
Rated 5 out of 5 by from Addictively good Look great, feel great. Only thing I would change is not buying another pair.
Date published: 2020-02-04
Rated 5 out of 5 by from Way better than my nike air for running Was not sure about buying asics as i have always had nikes. Also went half a size bigger as recomended on the site but was very nervous about this too. When they arrived they looked and felt bigger than my usual nikes, kind of wider and a bit cumbersome not the most beautiful trainers either. however the sole felt really well cushioned and i decided to give them a go. I was pleasantly suprised on my first use on the treadmill. I ran more noisily and roughly than normal but actually my fastest ever 3k and feet felt great. Two days later ran outside on tarmac. Absolutely great. Far more cushioned than my old nikes and ran 10k without any aches or pains (i am 48). Feet and toes very comfortable. Very impressed! if you ignore the looks a bit and concentrate on running they are really good. Highly recommended.
Date published: 2020-02-02
Rated 5 out of 5 by from Comfortable shoe This is my first running shoes and feels amazing. This is much fun to run with this comfort. I wish I had bought it before.
Date published: 2020-02-02
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