The Tritone™ trainers are inspired by British deadstock utility shoes from the 1990s. They feature a lightweight upper made from recycled polyester mesh and chrome-free tanned suede, set atop the chunky Vibram® RollinGait sole system. The curved sole technology is specially designed to help the natural, fluid movement of the foot, which reduces muscle fatigue, improves comfort and helps you walk for longer. The cork-laminated footbed provides extra cushioning and regulates moisture, while the sock-like Strobel construction ensures flexibility and light weight. Lace-up closureEVA midsole for cushioningVibram sole offers a steady grip even on slippery terrainChrome-free tanning means that a hide is converted to soft and supple leather using vegetable or synthetic extracts instead of chromium sulphateMade from plastic waste, such as used PET bottles, recycled-polyester yarn helps reduce waste products and lessens the use of oil-based raw materials