Creating the ultimate combination with leather – SiouxTEX
The combination of high-quality leather and our innovative Sioux-Tex climate membrane will give your feet that “feel-good” feeling: whilst moisture and vapour are quickly wicked away from the shoes, water from the outside has no chance of getting in, meaning your feet are always warm and dry.
The non-porous compact membrane works based on physico-chemical principles, unlike other membrane technologies:
Hydrophilic (or “water-loving”) molecules are built into the main hydrophobic (“water-repelling”) membrane. These extremely hydrophilic molecules allow water vapour to escape to the outside of the shoe without allowing water from the outside to enter.
This makes the shoe 100% waterproof, windproof and exceptionally breathable. Our Sioux-Tex climate membrane consists of non-hazardous polyester and polyether. It is manufactured using 100% recycled material.
The Sioux-Tex membrane has been tested and certified. The waterproofness of the membrane is regularly checked in laboratories to ensure that it features a hydrostatic head rating of at least 40 metres.
The Sioux-Tex membrane consists of a non-hazardous polyetherester (PEEST), which is a chain of polyester and polyether molecules. The membrane is therefore both friendly to your skin and the environment. Many other membranes available commercially are made of polytetrafluorethylene (PTFE), which produce environmentally harmful compounds during their the production, incineration and landfill processes that can be released into the environment. This is not the case with the Sioux-Tex membrane.