Run with Energy and Reactivity: Asics Novablast 4 Running Shoes The NOVABLAST 4 running shoes are designed to offer a more energetic and reactive run. With advanced technologies and a sustainable design, these shoes will help you achieve your goals with greater comfort and performance. Midsole and Cushioning FF BLAST PLUS ECO foam provides lightweight, quality cushioning, softening landings and boosting takeoff. The high midsole and its unique geometry guarantee greater energy recovery in each stride. Upper Details The technical fabric upper promotes breathability and comfort, while the reinforced tongue with adjustment system improves midfoot support and reduces tongue slippage. Sole and Traction The trampoline-inspired sole design provides superior reactivity with great responsiveness. The AHAR rubber sole improves durability, ensuring excellent traction on asphalt surfaces. Sustainability and Materials Designed with the environment in mind, at least 75% of the main upper material is made up of recycled content, and the cushioning is made with approximately 20% bio-based content. In addition, water consumption and carbon emissions have been reduced during the manufacturing of the insole. Improved Visibility Reflective details increase your visibility in low light, ensuring you are always seen while running.