(TAB) With On, even the components which are not visible to the customers are designed thoroughly. The so called Speedboard is embedded in the midsole of the On shoes and guarantees a progressive rolling motion and four distinct functional layers interact to support a natural gait: Layer 1, Flex Power: The lengthwise grid translates the impact of the landing into forward energy. Layer 2, Spiral Dynamics: The diagonal grid supports the natural gait of the foot in a spiral motion. Layer 3, Torsion Guidance: The high density diagonal grid guides the foot muscles through the essential torsion phase of the foot movement. Layer 4, Reinforcement: The transverse grid ensures even energy distribution, interacting with the CloudTec outsole. Photos ©On.