The Karhu Synchron first made its debut in the 80’s and since then, has become easy to recognise through its unorthodox lacing system. To this day, the sneaker remains a comfortable model in the brand’s line-up, thanks to its soft mesh uppers and comfortable air cushioned unit. Mesh Uppers, Suede Overlays, Rubber Outsole. Karhu Men's Synchron Classic Sneakers in Dawn Blue/Lily White, Size UK 10 | END. Clothing