The NOVABLAST™ 4 running shoe features a new midsole and outsole geometry that helps produce an energized ride. A tongue wing construction in the upper helps improve the fit while reducing tongue movement. It's complemented with an engineered woven upper that offers more stretch, ventilation, and durability. FF BLAST™ PLUS ECO cushioning is made with 20% recycled bio-based content. This material helps create softer landings and a more energized toe-off during your training.

Features:
• Engineered woven upper offers advanced stretch, ventilation, and durability
• Tongue wing construction added stretch helps improve the fit while reducing tongue movement
• Gusseted tongue wing fit system improves the midfoot fit and reduces tongue sliding
• FF BLAST™ PLUS ECO cushioning made with approximately 20% bio-based content and helps provide cloud-like comfort
• Trampoline-inspired outsole design helps provide a more responsive bounce back
• AHAR® outsole improves durability
• Reflective details help improve visibility in low-light settings