Topo® Athletic Fli-lyte 6 is a moderately cushioned trainer built for daily miles, up-tempo workouts, and gym work. The updated upper provides increased comfort with a sleek and modern design. The 23 x 20 mm stack height offers an optimal balance between cushioning and ground feel, while the ZipFoam™ midsole provides a lightweight and responsive ride. Made from polyester upper, lining, and EVA insole.