Prototypes The development process involved nine prototypes over the course of four years to arrive at the final product. Prototype #1: 10/10/2021 Prototype #2: 09/12/2021 Prototype #3: 13/02/2022 Prototype #4: 07/05/2022 Prototype #5: 19/07/2022 Prototype #6: 26/08/2022 Prototype #7: 07/07/2023 Prototype #8: 24/11/2023 Prototype #9: 13/07/2024 (final product) Sole Design Patents USA: U.S. Patent App. No. 29/792,841: SHOE SOLE (222203620.SALD) Mexico and Latin America: MX/f/2021/003449 Europe and Asia: In process