Asics

Gel-Nimbus Platinum 21

Asics
  • Gel-Nimbus Platinum 21
Run further in the GEL-NIMBUS® 21 PLATINUM road running shoe by ASICS. With a springy midsole, energized cushioning and clever technologies to keep your natural line of motion without twisting, you can focus on achieving greater distances every time.
The GEL-NIMBUS® 21 PLATINUM shoe features I.G.S® (Impact Guidance System) technology to enhance your natural gait. A GUIDANCE LINE™ sole helps to stop you twisting, while TRUSSTIC SYSTEM® technology - a moulded component under the midfoot - provides extra stability and increases stride efficiency. In the midsole, FLYTEFOAM® Propel technology puts a spring in your step; it's a lightweight foam with a high-energy return elastomer for great bounce and unrivalled toe-off. GEL® technology in the rear and forefoot is a silicone material strategically placed to offer excellent shock absorbency - crucial for long-distance road runners. For extra comfort, there's even plush cushioning in the SpEVA 45 lasting, which provides added stability too. The shoe has a Jacquard mesh upper to help air flow freely to the foot, while the AHAR® heel plug gives added durability. This AHAR® sole is a tough compound which helps reduce wear and tear. The external heel counter grips the heel for a comfortable fit, while there's further support from an EVA sockliner. Running in low light? We've added even more reflective detail to ensure visibility when the evening draws in - so you can run when you want.

PRODUCT FEATURES

I.G.S® (IMPACT GUIDANCE SYSTEM) TECHNOLOGY

ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off.

GUIDANCE TRUSSTIC SYSTEM™ TECHNOLOGY

This Trusstic System® Technology integrates Guidance Line® construction for enhanced gait efficiency while providing midfoot structural integrity.

SPEVAFOAM™ 45 LASTING

Employs 45 degree full length SpevaFoam™ 45 lasting material for a soft platform feel and improved comfort.

ORTHOLITE® X-40 SOCKLINER

This premium sockliner features higher rebound properties while providing excellent moisture management and a high-level of breathability (Ortholite is a registered trademark of ATP Manufacturing LLC.)

FLYTEFOAM® LYTE TECHNOLOGY

ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers.

FLYTEFOAM® PROPEL TECHNOLOGY

ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound.

SKU#:

$159.99

Color :

Size

14
15
16
Size Guide

Width

Medium - D

Availability: 1 in stock

Run further in the GEL-NIMBUS® 21 PLATINUM road running shoe by ASICS. With a springy midsole, energized cushioning and clever technologies to keep your natural line of motion without twisting, you can focus on achieving greater distances every time.
The GEL-NIMBUS® 21 PLATINUM shoe features I.G.S® (Impact Guidance System) technology to enhance your natural gait. A GUIDANCE LINE™ sole helps to stop you twisting, while TRUSSTIC SYSTEM® technology - a moulded component under the midfoot - provides extra stability and increases stride efficiency. In the midsole, FLYTEFOAM® Propel technology puts a spring in your step; it's a lightweight foam with a high-energy return elastomer for great bounce and unrivalled toe-off. GEL® technology in the rear and forefoot is a silicone material strategically placed to offer excellent shock absorbency - crucial for long-distance road runners. For extra comfort, there's even plush cushioning in the SpEVA 45 lasting, which provides added stability too. The shoe has a Jacquard mesh upper to help air flow freely to the foot, while the AHAR® heel plug gives added durability. This AHAR® sole is a tough compound which helps reduce wear and tear. The external heel counter grips the heel for a comfortable fit, while there's further support from an EVA sockliner. Running in low light? We've added even more reflective detail to ensure visibility when the evening draws in - so you can run when you want.

PRODUCT FEATURES

I.G.S® (IMPACT GUIDANCE SYSTEM) TECHNOLOGY

ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike to toe-off.

GUIDANCE TRUSSTIC SYSTEM™ TECHNOLOGY

This Trusstic System® Technology integrates Guidance Line® construction for enhanced gait efficiency while providing midfoot structural integrity.

SPEVAFOAM™ 45 LASTING

Employs 45 degree full length SpevaFoam™ 45 lasting material for a soft platform feel and improved comfort.

ORTHOLITE® X-40 SOCKLINER

This premium sockliner features higher rebound properties while providing excellent moisture management and a high-level of breathability (Ortholite is a registered trademark of ATP Manufacturing LLC.)

FLYTEFOAM® LYTE TECHNOLOGY

ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers.

FLYTEFOAM® PROPEL TECHNOLOGY

ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound.


If you are unsure of your shoe size, measure your feet to find your size. Please also keep in mind that each shoe brand fits differently and therefore your size may be different by brand and even be different by style within the same brand. Please refer to the fit guide and reviews on products for additional information.

Please follow the directions below:

  1. Wearing a sock of medium thickness, stand on a piece of paper.
  2. Place a mark at the end of your heel and at the tip of your longest toe.
  3. Mark the sides of your foot at the widest part.
  4. Measure both feet and use the larger of the two
  5. To find your size, use these measurements and refer to the sizing chart below.
  6. If your measurements are between two sizes, or you find one foot's measurement is larger than the other, always move up to the larger size.
Length Size Width size B or C Width size D Width size EE or EEE
11 11/16 13 4 4 6/16 4 12/16
12 14 4 2/16 4 8/16 4 14/16
12 5/16 15 4 4/16 4 10/16 5
12 11/16 16 4 4/16 4 12/16 5 2/16
13 17 4 8/16 4 14/16 5 4/16
13 5/16 18 4 10/16 5 5 6/16
13 11/16 19 4 12/16 5 2/16 5 8/16
14 20 4 14/16 5 4/16 5 10/16

It is also helpful to know the width of your foot, widths are expressed in many ways for mens shoes. Below is a chart that will help you dechiper all the variations of width - each shoe manufacturer marks widths differently.

Narrow Medium Wide Extra Wide
N M W XW
B D E EEE
C EE 3E
2E 4E

Please also keep in mind that each shoe brand fits differently and therefore your size may be different by brand and even be different by style within the same brand.

The shoes on our site are all U.S. sizes. To convert an international size to its U.S. size, go to the size conversion table below.

USA UK EUR Inches
13 12 47 11 11/16
14 13 48 12
15 14 49 12 5/16
16 15 50 12 11/16
17 16 51 13

International Shoe Size Notes

  1. Canadian shoe sizes are equivalent (identical) to American shoe sizes.
  2. Mexican shoe sizes plus 1? are the same as American Men's shoe sizes.
  3. British shoe sizes plus 1 are the same as American Men's shoe sizes.
  4. Japanese shoes sizes are American Men's shoes sizes plus 18. (Some companies say add 19.)
  5. Europe uses a system that came from the French called Paris Points. One Paris Point equals two-thirds of a centimeter. The system starts at zero centimeters and increases. There are no half sizes. American size 0 is the same as 15 Paris Points.
  6. Australia and New Zealand use the same shoe sizes as the United Kingdom.

If you are unsure of your shoe size, he’s how to measure it:

  1. Wearing a sock of medium thickness, stand on a piece of paper.
  2. Place a mark at the end of your heel and at the tip of your longest toe.
  3. Mark the sides of your foot at the widest part.
  4. Measure both feet and use the larger of the two
  5. To find your size, use these measurements and refer to the sizing chart below.
  6. If your measurements are between two sizes, or you find one foot's measurement is larger than the other, always move up to the larger size.