Women's Topo, Ultrafly 4 Running Shoe. Welcome to the world of natural running. The Ultrafly 4 is the newest version of our all-purpose daily trainer, now featuring even more comfort and sustainable materials.

• Recycled engineered mesh upper
• Ortholite footbed adds comfort and support by resisting compression
• Deep heel cup with molded collar for a better, more comfortable fit in the heel
• New dual density ZipFoam midsole delivers more long-term resilience and a higher rebound compared to traditional EVA
• Anatomical toe box is wider at the toe area and snug at the heel for an excellent fit
• TPU heel counter and EVA medial post offer light guidance
• Lighter and more flexible outsole
• 5mm drop