Engineered knit upper: Wraps the foot with a soft feel while improving breathability At least 75% of the shoe's main upper material is made with recycled content to reduce waste and carbon emissions: The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology: PureGEL technology: Helps provide lightweight cushioning and softer landings FF BLAST ECO PLUS technology: Cushioning creates a softer landing and a more responsive toe-off The GEL-NIMBUS 25 shoe's soft cushioning properties help you feel like you're landing on clouds. This neutral trainer is revamped with new materials that create a softer and smoother running experience. A soft knit upper comfortably wraps your foot while supplying advanced ventilation. Its updated knit tongue construction provides better flexibility and extends around the ankle for a more luxurious fit and feel.The midsole is packed with the most cushioning that the series has offered to date. By adding more FF BLAST PLUS ECO cushioning and using our new PureGEL technology, this trainer creates a lighter and softer cushioning experience.