The lightest Petzl harness! FLY is a minimalist harness specifically designed for technical mountaineering and ski mountaineering. It's easy to put on without removing your skis or crampons, making it a practical solution. It’s also modular, with removable padding in the waistbelt and leg loops, so you can adapt the level of comfort and weight. Gear loops and ice screw retainers allow you to keep your gear within reach.