Lightweight, all-season baselayer bottoms with a gusseted design and a touch of stretch, the Zone Leggings offer breathable insulation and unrestricted range of motion on any day of the year. The Zone Leggings feature Icebreaker's BodyfitZONE™ construction, which combines lightweight 200gm stretch merino wool with strategically placed merino mesh panels to help regulate temperature during stop-and-go days of skiing, climbing and cold-weather hiking. Flatlock stitching keeps these bottoms from chafing during day after day of dynamic motion.