We’re proud of the specialist technology and innovation that makes Sioux shoes stand out from the crowd. Read about what makes our shoes unique, including our Sioux-TEX waterproof membrane, natural movement technology, natural crepe soles, and how we ensure comfort for bunions and wide feet.
Sioux-TEX
The combination of high-quality leather and our innovative Sioux-Tex climate membrane will give your feet that feel-good feeling. As moisture is quickly wicked away from the shoe, water from the outside has no chance of getting in, meaning your feet are always warm and dry.
Our specialist technology makes the shoe 100% waterproof, windproof and exceptionally breathable. The Sioux-Tex membrane has been tested and certified to ensure it's top quality performance.
Our Sioux-Tex climate membrane consists of non-hazardous polyester and polyether. It is manufactured using 100% recycled material. The membrane is friendly to your skin and the environment. Many other membranes available commercially are made of polytetrafluorethylene (PTFE), which produces environmentally harmful compounds during production, incineration and landfill processes that can be released into the environment. This is not the case with the Sioux-Tex membrane.
The Sioux Natural Move System
Sioux has reinvented the business shoe by combining the classic business shoe with our Sioux Natural Move System™. The result is a modern business shoe boasting the same comfortable features as trainers, making them perfect for wearing both in the office and in your free time thanks to their exceedingly soft feel and comfortable fit.
Our innovative air cushion sole with honeycomb technology provides excellent grip thanks to the tread pattern on its surface. It boasts an innovative honeycomb system comprising small pockets of air, which absorbs your weight and ensures excellent comfort.
The anatomically sculpted, leather-covered removable insole ensures a natural and relaxed gait. The active roll-through movement and arch support strengthens the muscles in the foot and takes pressure off the spine. We have also padded the edge of the shaft for extra comfort, and the insoles can be replaced with own orthopaedic inserts as needed.
For our wider sizes, the wonderfully comfortable, extra-wide fit provides plenty of space (even for wider feet) and the high-quality interior will make you feel like you are walking on clouds.
NATURAL CREPE SOLES
Natural crepe soles are one of Sioux’s signature features. For over 60 years, our crepe soles have been crafted with the highest quality natural rubber.
The Sioux crepe sole is a completely natural product with extraordinary resilience and a smooth finish that ensures unbeatable comfort. It provides ideal protection for the most complex part of the foot, the midfoot, as it supports the natural flexing action. When the foot impacts the ground, the soles act as a natural shock absorber, protecting the tendons and ligaments thanks to the thousands of air bubbles contained within them.
The structure of the surface also provides the crepe sole with long lasting durability. The material is open-pored and has an excellent grip on slippery surfaces.
To produce our premium crepe sole, we only use sap extracted from the Hevea tree. This extraction does not weaken the tree, and actually helps it flourish. The tapped sap is constantly being reproduced by these trees and they are allowed a sufficient break for regenerating. After this period, the latex tree is tapped again. Botanists even say that this process of tapping is even known to strengthen the resistance of the tree.
The sustainability benefits of crepe soles do not just stem from their natural origin. Crepe soles are bio-degradable – something which cannot be said for rubber, TPU and EVA soles. When they’ve had their day, they can decompose gracefully back into the earth.