Seamless Knitted Upper: Provides ultimate step in comfort and plush breathable sock-like fit.Bionic Foot-shaped Design: Loose toe-box is great for bare-foot use, granting ultimate freedom and relaxation to your walking experience. Ultra-lightweight :Lightweight, one-piece design weighs roughly the same as an avocado (130g/shoe). Ultra-soft EVA Outsole: Soft and spongy resilient EVA material gives you a gentle touch on the ground, durable outsole keeps up with all your adventures. Healthy Feet Happy Life: Soft & Elastic Ortholite Cushioning Insole: Massage insole promotes air circulation to keep your feet dry and helps to improve blood circulation in the feet.