The ST-6 is Topo Athletic's minimalist zero-drop trainer with a uniform 14mm stack and 187g weight, using ZipFoam™ supercritical foam. At NT$4,000, it's an affordable entry into natural running. The ultra-low 14mm platform delivers raw ground connection while the zero-drop geometry promotes midfoot striking and builds foot/calf strength. Ideal for experienced minimalist runners seeking a daily trainer or recovery shoe. Beginners should transition gradually to allow adaptation—this is a form-building tool, not a plush cruiser.