Lazuli Pro - Healthier and Comfortable Feet with Barefoot Shoes (Unisex)Put an end to stiff and restrictive shoes! Rigid soles and inflexible shoes can cause painful issues in your nervous system and fail to support your natural anatomy during daily activities. The most natural way to walk is barefoot. The ultra lightweight and flexible 4mm thin sole promotes a natural walking pattern and encourages the natural alignment of your feet. This effectively prevents common discomfort in your knees, hips, back, ankles, and feet.