- 3D FOAM- Polyester and microfiber upper- 3D-printed outer structure- Leather-free, animal-friendly- Holographic label- Polyester laces- Assembled with patented glue-free technology- Color: WhiteTo ensure long-lasting wear and keep your Servati looking their best, follow these simple cleaning tips:1- Use neutral soap and a soft sponge to remove everyday dirt.2- For more stubborn stains, apply a gentle degreasing detergent.3- Always rinse with plenty of water to remove any residue.Avoid machine washing or the use of harsh solvents, which could damage the materials.