The Asics Gel-Nimbus 21 Women's Running Shoe features IGS (Impact Guidance System) technology: a construction technique that allows the shoe to adapt to your natural gait. The TRUSSTIC SYSTEM technology offers additional stability.
The upper is made of jacquard mesh and provides a comfortable fit, providing optimal airflow and keeping the foot fresh while doing long runs.
Asics's famous GEL technology in the front and back sole area provides you with energy-absorbing shock-absorbing silicone for heavy-duty activity.
The FLYTEFOAM propel technology in the midsole provides excellent fore-to-toe rebound and kick. This lightweight foam formulation features a special energizing, spring-loaded elastomer that gives your steps a bounce.
The SpEVA insole gives you even more spring back and improves the durability of the shoe.

- IGS (Impact Guidance System) technology
- Jacquard mesh upper
- FLYTEFOAM Propel Technology
- FLYTEFOAM Lyte technology
- AHARPLUS heel plug
- External heel counter
- GEL technology
- SpEVA insole
- Molded EVA insole
- Heel clutching system
- TRUSSTIC SYSTEM technology
- Biomass FLYTEFOAM NANO technology

(Translated with Google Translate)