Three-layer apparel has been a favourite choice for active use for years. As they are completely weatherproof but no separate liner fabric, moisture has nowhere to hide. These are also the most durable shell clothes available. By adjusting your base and mid layers, a jacket like this can work year round: as a just-in-case it rains jacket during summer, and for general use during other seasons. The Kaarna Jacket will serve you on the most demanding hike of your year, as well as in everyday use. Its weight is less than 400 grams - Halti doesn't mention their apparels exact weights. - Good freedom of movement thanks to the pattern - Waterproof, windproof and breathable DrymaxX Ultimate 3L Pro 400 Eco RECY material - Integrated Active Dry Knit liner - Integrated hood with great adjustment - this hood protects you in high winds and rain - Velcro cuffs - Pit zips for ventilation - Two lower pockets, two chest pockets - Halti ECO product thanks to bluesign approved material and being PFC-f