Genuine leather is a fascinating natural product. You are able to discover traces of a life when looking at layers of leather. The animal’s origin, farming methods - animals who were able to graze freely have fewer scars - and even the food that the animal used to eat over the course of its life play a huge role. You can also estimate how old an animal was by examining the leather. Every piece of leather is therefore ultimately an extraordinary, unique creation. And beautiful leather can reveal its unique character in our high-quality shoes.
Each leather hide is thoroughly inspected by Sioux’s leather buyers: perfect workmanship and a flawless grain pattern is of the utmost importance to them. The more natural the leather is, the more beautiful it is – and the more likely that it will be brought to life once more on the feet of a Sioux wearer.
The special quality of the leather is reflected in the tanning process. As part of its sustainable strategy, Sioux only selects leather from European tanneries that we have personally visited. At these tanneries, the leather can be followed from the source, right through to the end product. The high-quality leathers are dyed solely in barrels, hence the dye penetrates the entire leather. This is guaranteed by regular checks by Sioux staff in the Quality Assurance department and by independent testing institutes. Sioux has developed comprehensive compliance guidelines; each supplier is audited and approved as part of a complex process. We cooperate only with a few selected suppliers that we know personally and where a long-term business relationship has been built up. Quality is also based on this level of trust. Compliance with all relevant limits is verified by German testing laboratories. Sioux goes beyond what the law prescribes: only the best leather is born again as a Sioux shoe.
It is with this in mind, that at Sioux, we use only the best, tested quality of leather. This is primarily the upper layer of leather, i.e. the grain side or split leather, which is found right underneath the grain side. This is the second best quality of leather. We make the parts that become particularly worn down when wearing from the best part of the back. The most dense and even fibre structure can be found here. In order to get a consistent picture, a pair of Sioux shoes are always cut from the same hide.
Due to the various types of leather, tanning processes and colours, Sioux incorporates over 200 different varieties of leather into its collections. From non-slip, smooth leather and colourful suede and nubuck leathers, to reptile, metallic and glossy looks, everything has the same inimitable Sioux quality.