This lightweight shoe features more energy return than the previous version, it's designed to help you run faster. And it will leave you feeling energised every step of the way. It's no surprise that it's the preferred training shoe among athletes._This shoe's FF BLAST PLUS ECO foam creates a softer, more energised running experience and provides added bounce thanks to its trampoline-inspired outsole. Its unique design and fit and higher midsole will give you added energy return during your run. Completed with unique geometric design._This shoe is designed with energy return in mind, and hours have been spent testing it at the Institute of Sport Science (ISS) in Japan. The NOVABLAST 4 running shoe includes additional technical features to support you during your runs - run with confidence._•                             FF BLAST PLUS ECO - provides lightweight, premium cushioning for added comfort.•                             Trampoline-inspired outsole design: provides a more responsive bounce back.•                             High midsole and unique geometric design: ensures extra energy return.•                             Gusseted tongue wing fit system: improves the midfoot fit and reduces tongue sliding.•                             Small reflective details: helps improve visibility during low-light conditions.•                             AHAR LOW HARDNESS outsole material: enhances resistance against wear and tear.•                             Engineered woven upper: helps improve breathability and comfort.•                             Designed with the environment in mind: 79% of the shoe's upper is recycled. We've also used less water and reduced our carbon emissions while producing the shoe's sockliner, and the insole, toe box, eyelet, tongue and collar lining are all made from recycled materials.•                             Surface: Road•                             Support: Neutral•                             Cushion: Maximum