Rukka Kalix 2.0 Gore-Tex Motorcycle Textile TrousersRough weather? Not an issue for any riders with the new Rukka Kalix 2.0. Made of abrasion and tear resistant Gore- Tex®. it is 100% water- and windproof as well as breathable. In short: the Kalix 2.0 is the perfect combination of all outstanding Rukka values.