The M89 Ground is a minimalist barefoot walking shoe designed to mimic the natural way of walking, encouraging healthier posture, stronger feet, and a deeper connection with the ground. Ideal for barefoot beginners, its refined design and responsible materials make the transition to a more natural way of walking feel easy and approachable. These zero-drop sneakers feature interchangeable insoles and an ultra-thin sole that keep you as close to the ground as possible, allowing you to adapt gradually to the barefoot feel while making every step feel natural and free. Ideal for barefoot beginners Allowing you to adapt gradually to the barefoot feel while making every step feel natural and free. A sleeker feel, even for a barefoot shoe Crafted with 100% recycled polyester made from used plastic bottles. Lining made from soft bamboo and recycled PET sourced from post-consumer plastic waste. Includes interchangeable insoles:• 5mm insole for added comfort and a smoother transition into barefoot footwear• 3mm insole for a more direct, closer-to-ground barefoot feel For every pair sold, we fund the growth of seaweed in Canadian waters. Ethically crafted in Portugal. Our packaging is 100% recycled and recyclable. Please note that due to the non-chemical dye used in the bamboo lining, slight color transfer may occur during the first wears.