Halti has conjured up excellent breathability with full weather protection in this pant model, by using the high-quality DrymaxX® Nano Motion ECO RECY material. Combine it with weather-appropriate underwear and midlayers for functionality almost all year round. - Waterproof, windproof, breathable - Two layer structure: Active Mesh liner around the body, and a soft polyester liner on the sleeves - Halti ECO product: 50% of the polyester surface fabric is recycled - Hem zippers - Waist Velcro tabs for adjustment to suit different types of base and mid layer setups *In some production batches the labels have the wrong hydrostatic head and breathability values.* The manufacturer has confirmed that 20 000 and 27 000 are the correct numbers.