ASICS Gel-Nimbus 21

ASICS Gel-Nimbus 21 - Men's

ASICS Gel-Nimbus 21 - Men's

ASICS Gel-Nimbus 21 - Women's

ASICS Gel-Nimbus 21 - Women's


Mile after the mile, the ASICS GEL-Nimbus 21 provides the same cloud like, pillow-soft cushioning under foot with a few improvements to make for a heavenly running experience. The latest iteration of this neutral running favorite features an innovative midsole that incorporates FLYTEFOAM Propel technology to give you maximum response on the forefoot and propel you forward. The new engineered mesh upper offers more breathability and support while the spacious toe-box and GEL cushioning on the forefoot provide more space for your feet to move. You’ll feel the energy for an endless run.

Lace up and get ready to soar in the new ASICS GEL-Nimbus 21 running shoes.


  • Weight: 10.9 oz (Men's) | 9 oz (Women's)

  • Drop: 10mm (Men's) | 13mm (Women's)

  • Stack Height: Men's - 23mm (Heel) | 13mm (Forefoot), Women's - 25mm (Heel) | 12mm (Forefoot)

  • High level cushioning

  • Neutral Road Shoe


  • AHAR® OUTSOLE: Acronym for ASICS High Abrasion Rubber. Placed in critical areas of the outsole for exceptional durability.

  • FLYTEFOAM® PROPEL TECHNOLOGY: ASICS energetic foam formulation that provides supreme bounce thanks to a unique elastomer compound.

  • REFLECTIVITY: Contains reflective materials designed to enhance visibility during low light hours.

  • FLYTEFOAM® LYTE TECHNOLOGY: ASICS lightest weight midsole formulation that provides continuous cushion thanks to organic nano fibers.

  • HEEL CLUTCHING SYSTEM™ TECHNOLOGY: Exoskeletal heel counter provides improved support and creates improved heel fitting environment.

  • REARFOOT AND FOREFOOT GEL® TECHNOLOGY CUSHIONING SYSTEM: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle.

  • 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.

  • GUIDANCE LINE® MIDSOLE TECHNOLOGY: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency.

  • 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.)

Women's Shoe Features: Gender Specific Cushioning 

Women's models feature a lower-density top layer in the midsole, allowing female athletes to better enjoy the benefits of midsole compression.

PLUS 3® MIDSOLE TECHNOLOGY: 3mm of additional height on women's models helps relieve achilles tension.