It is the highest Portuguese mountain (1994m) and the largest protected nature reserve that covers 100.000ha. Serra da Estrela is a very isolated region, formerly known for its socio-economic activity in producing woven and knitted wool.

The raw Wool finds its origin from the bordeleira sheep. After the shearing of the sheep, the Wool is carefully selected, spun and then woven on mechanical shuttle looms, on which initially the traditional Portuguese shepherd’s blankets were woven over many generations. The woven Wool is washed with soft non-polluted spring water, flowing true the Zêzere ice valley, captured about 1400m of altitude. This compact, dry Wool becomes then extremely resistant and water-repellent. The Wool is not treated to maintain its natural quality, his authenticity and his sustainability. Colour is based on the natural range of colours of the wool and non-chemical dyes are used.

This high-sustainable, water-repellent woven wool, is the guiding principle for SENNES. Due to its ideal characteristics it is the perfect textile material for bags and outerwear.

Next to wool Linen is known as one of the oldest natural fibres produced with great respect for the environment. The western region of Belgium, has been growing and transforming linen for centuries. This region is ideal for Linen production thanks to it's climate and topography, interlaced with many small rivers. The craft of Linen manufacture lives in Flanders, especially in the Lys region.

The processes of Flax need very little energy and do not harm nature. Flax has ecological characteristics, as being 100% biodegradable and recyclable.