Our full range of Sioen Waterproof Trousers includes the Tarviso, Bitoray, Tielson, Carlow and Zarate lines. Using innovative and unique SIOPOR fabric waterproofing technology, Sioen are an industry leader in high-quality waterproof workwear. The range also includes garments that pairi waterproofing functionality with anti-static, flame retardant and high-visibility protection, giving you the best level of protection possible.