Topo's high-cushion, neutral trainer designed for daily miles, long runs, fitness walking and daily wear. The fourth generation has a new 35 x 30 mm stack height providing an additional 2 mm of cushioning. Topo's ZipFoam™ midsole delivers a lightweight and responsive ride. The improved aesthetic offers a more dynamic and sleek design. Their OrthoLite Performance Insole provides a soft step-in feel.