LIGHTNESS: The lightest clog in the market: 220 grams (size 38/39). Ultra comfortable with million of bubbles for better flexibility and cushioning . Shock absorbers. Bending bars for a higher flexibility. COMFORT: Shock absorber on the heel and bending bars + anti-torsion arch support. SAFETY: Outsole with calks, front reinforcement for durability and inside the outsole for foot maintain.