The leather of the upper is laminated with a light non-woven fabric in Dyneema®, the strongest and most durable lightweight fibre in the world, producing unusually high tensile strength. The upper is completed with a high tenacity nylon canvas. The upper and the sole are laid above and under an anatomically profiled midsole template. Then, using ECCO'S unique Fluidform® technology, Phorene®, a shock absorbing polyurethane liquid is injected into the template. This liquid, when dry, fuses the leather upper and sole together, creating an integral bond between the upper, the midsole and the sole. This bond, created without any glue or stitching, allows the boots to be finished using STONE ISLAND's high temperature garment dyeing process.