In the late 1990s, the brand began producing high-quality shoes in Portugal, inspired by the "Negative Heel" of Earth and Roots footwear from the 1970s. The Negative Heel design is the secret to good posture, as well as representing Yogi's iconic style. The brand's products combine sustainable production methods and locally sourced materials with ergonomic, clean and minimalist design. Sustainable development and ethical practices are the cornerstones and core values of Yogi's brand philosophy.